Home / 22,612.14-31,212.84-15,436.92

Finding the Fourth Proportional to 22,612.14, 31,212.84 and 15,436.92

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Solution

The fourth proportional to 22,612.14, 31,212.84 and 15,436.92 is: 21,308.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,612.14 : 31,212.84 = 15,436.92 : x
  2. Step 2: Convert to fraction form
    22,612.14/31,212.84 = 15,436.92/x
  3. Step 3: Cross multiply
    22,612.14x = 31,212.84 × 15,436.92
  4. Step 4: Simplify right side
    22,612.14x = 481,830,114.05
  5. Step 5: Solve for x
    x = 481,830,114.05/22,612.14
  6. Step 6: Final answer
    x = 21,308.47

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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.