Home / 28,320.54-39,082.98-15,572.91

Finding the Fourth Proportional to 28,320.54, 39,082.98 and 15,572.91

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Solution

The fourth proportional to 28,320.54, 39,082.98 and 15,572.91 is: 21,490.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,320.54 : 39,082.98 = 15,572.91 : x
  2. Step 2: Convert to fraction form
    28,320.54/39,082.98 = 15,572.91/x
  3. Step 3: Cross multiply
    28,320.54x = 39,082.98 × 15,572.91
  4. Step 4: Simplify right side
    28,320.54x = 608,635,652.21
  5. Step 5: Solve for x
    x = 608,635,652.21/28,320.54
  6. Step 6: Final answer
    x = 21,490.96

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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.