Home / 22,347.38-30,838.19-12,787.47

Finding the Fourth Proportional to 22,347.38, 30,838.19 and 12,787.47

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Solution

The fourth proportional to 22,347.38, 30,838.19 and 12,787.47 is: 17,646.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,347.38 : 30,838.19 = 12,787.47 : x
  2. Step 2: Convert to fraction form
    22,347.38/30,838.19 = 12,787.47/x
  3. Step 3: Cross multiply
    22,347.38x = 30,838.19 × 12,787.47
  4. Step 4: Simplify right side
    22,347.38x = 394,342,365.54
  5. Step 5: Solve for x
    x = 394,342,365.54/22,347.38
  6. Step 6: Final answer
    x = 17,646.02

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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.