Home / 23,180.44-31,983.66-15,640.76

Finding the Fourth Proportional to 23,180.44, 31,983.66 and 15,640.76

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Solution

The fourth proportional to 23,180.44, 31,983.66 and 15,640.76 is: 21,580.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,180.44 : 31,983.66 = 15,640.76 : x
  2. Step 2: Convert to fraction form
    23,180.44/31,983.66 = 15,640.76/x
  3. Step 3: Cross multiply
    23,180.44x = 31,983.66 × 15,640.76
  4. Step 4: Simplify right side
    23,180.44x = 500,248,749.98
  5. Step 5: Solve for x
    x = 500,248,749.98/23,180.44
  6. Step 6: Final answer
    x = 21,580.64

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Half scale
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Double scale
Find fourth proportional to 23,181.44, 31,985.04 and 15,641.76
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.