Home / 22,715.49-31,330.62-15,644.19

Finding the Fourth Proportional to 22,715.49, 31,330.62 and 15,644.19

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Solution

The fourth proportional to 22,715.49, 31,330.62 and 15,644.19 is: 21,577.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,715.49 : 31,330.62 = 15,644.19 : x
  2. Step 2: Convert to fraction form
    22,715.49/31,330.62 = 15,644.19/x
  3. Step 3: Cross multiply
    22,715.49x = 31,330.62 × 15,644.19
  4. Step 4: Simplify right side
    22,715.49x = 490,142,172.10
  5. Step 5: Solve for x
    x = 490,142,172.10/22,715.49
  6. Step 6: Final answer
    x = 21,577.44

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Half scale
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Double scale
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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.