Home / 40,577.78-55,997.79-22,430.75

Finding the Fourth Proportional to 40,577.78, 55,997.79 and 22,430.75

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Solution

The fourth proportional to 40,577.78, 55,997.79 and 22,430.75 is: 30,954.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,577.78 : 55,997.79 = 22,430.75 : x
  2. Step 2: Convert to fraction form
    40,577.78/55,997.79 = 22,430.75/x
  3. Step 3: Cross multiply
    40,577.78x = 55,997.79 × 22,430.75
  4. Step 4: Simplify right side
    40,577.78x = 1,256,072,428.04
  5. Step 5: Solve for x
    x = 1,256,072,428.04/40,577.78
  6. Step 6: Final answer
    x = 30,954.69

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Half scale
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Double scale
Find fourth proportional to 40,578.78, 55,999.17 and 22,431.75
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.