Home / 28,082.14-38,753.36-15,506.88

Finding the Fourth Proportional to 28,082.14, 38,753.36 and 15,506.88

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Solution

The fourth proportional to 28,082.14, 38,753.36 and 15,506.88 is: 21,399.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,082.14 : 38,753.36 = 15,506.88 : x
  2. Step 2: Convert to fraction form
    28,082.14/38,753.36 = 15,506.88/x
  3. Step 3: Cross multiply
    28,082.14x = 38,753.36 × 15,506.88
  4. Step 4: Simplify right side
    28,082.14x = 600,943,703.12
  5. Step 5: Solve for x
    x = 600,943,703.12/28,082.14
  6. Step 6: Final answer
    x = 21,399.50

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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.