Home / 28,082.28-38,752.02-15,506.12

Finding the Fourth Proportional to 28,082.28, 38,752.02 and 15,506.12

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Solution

The fourth proportional to 28,082.28, 38,752.02 and 15,506.12 is: 21,397.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,082.28 : 38,752.02 = 15,506.12 : x
  2. Step 2: Convert to fraction form
    28,082.28/38,752.02 = 15,506.12/x
  3. Step 3: Cross multiply
    28,082.28x = 38,752.02 × 15,506.12
  4. Step 4: Simplify right side
    28,082.28x = 600,893,472.36
  5. Step 5: Solve for x
    x = 600,893,472.36/28,082.28
  6. Step 6: Final answer
    x = 21,397.60

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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.