Home / 20,349.97-28,082.31-11,274.95

Finding the Fourth Proportional to 20,349.97, 28,082.31 and 11,274.95

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Solution

The fourth proportional to 20,349.97, 28,082.31 and 11,274.95 is: 15,559.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,349.97 : 28,082.31 = 11,274.95 : x
  2. Step 2: Convert to fraction form
    20,349.97/28,082.31 = 11,274.95/x
  3. Step 3: Cross multiply
    20,349.97x = 28,082.31 × 11,274.95
  4. Step 4: Simplify right side
    20,349.97x = 316,626,641.13
  5. Step 5: Solve for x
    x = 316,626,641.13/20,349.97
  6. Step 6: Final answer
    x = 15,559.07

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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.