Home / 22,430.04-30,949.46-12,996.78

Finding the Fourth Proportional to 22,430.04, 30,949.46 and 12,996.78

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Solution

The fourth proportional to 22,430.04, 30,949.46 and 12,996.78 is: 17,933.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,430.04 : 30,949.46 = 12,996.78 : x
  2. Step 2: Convert to fraction form
    22,430.04/30,949.46 = 12,996.78/x
  3. Step 3: Cross multiply
    22,430.04x = 30,949.46 × 12,996.78
  4. Step 4: Simplify right side
    22,430.04x = 402,243,322.74
  5. Step 5: Solve for x
    x = 402,243,322.74/22,430.04
  6. Step 6: Final answer
    x = 17,933.24

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Half scale
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Double scale
Find fourth proportional to 22,431.04, 30,950.84 and 12,997.78
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.