Home / 28,082.27-38,753.29-15,506.75

Finding the Fourth Proportional to 28,082.27, 38,753.29 and 15,506.75

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Solution

The fourth proportional to 28,082.27, 38,753.29 and 15,506.75 is: 21,399.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,082.27 : 38,753.29 = 15,506.75 : x
  2. Step 2: Convert to fraction form
    28,082.27/38,753.29 = 15,506.75/x
  3. Step 3: Cross multiply
    28,082.27x = 38,753.29 × 15,506.75
  4. Step 4: Simplify right side
    28,082.27x = 600,937,579.71
  5. Step 5: Solve for x
    x = 600,937,579.71/28,082.27
  6. Step 6: Final answer
    x = 21,399.18

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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.