Home / 28,770.68-39,726.06-22,500.92

Finding the Fourth Proportional to 28,770.68, 39,726.06 and 22,500.92

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Solution

The fourth proportional to 28,770.68, 39,726.06 and 22,500.92 is: 31,068.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,770.68 : 39,726.06 = 22,500.92 : x
  2. Step 2: Convert to fraction form
    28,770.68/39,726.06 = 22,500.92/x
  3. Step 3: Cross multiply
    28,770.68x = 39,726.06 × 22,500.92
  4. Step 4: Simplify right side
    28,770.68x = 893,872,897.98
  5. Step 5: Solve for x
    x = 893,872,897.98/28,770.68
  6. Step 6: Final answer
    x = 31,068.88

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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.