Home / 21,432.60-29,569.86-12,472.92

Finding the Fourth Proportional to 21,432.60, 29,569.86 and 12,472.92

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Solution

The fourth proportional to 21,432.60, 29,569.86 and 12,472.92 is: 17,208.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,432.60 : 29,569.86 = 12,472.92 : x
  2. Step 2: Convert to fraction form
    21,432.60/29,569.86 = 12,472.92/x
  3. Step 3: Cross multiply
    21,432.60x = 29,569.86 × 12,472.92
  4. Step 4: Simplify right side
    21,432.60x = 368,822,498.19
  5. Step 5: Solve for x
    x = 368,822,498.19/21,432.60
  6. Step 6: Final answer
    x = 17,208.48

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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.