Home / 28,082.85-38,753.71-15,335.53

Finding the Fourth Proportional to 28,082.85, 38,753.71 and 15,335.53

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Solution

The fourth proportional to 28,082.85, 38,753.71 and 15,335.53 is: 21,162.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,082.85 : 38,753.71 = 15,335.53 : x
  2. Step 2: Convert to fraction form
    28,082.85/38,753.71 = 15,335.53/x
  3. Step 3: Cross multiply
    28,082.85x = 38,753.71 × 15,335.53
  4. Step 4: Simplify right side
    28,082.85x = 594,308,682.32
  5. Step 5: Solve for x
    x = 594,308,682.32/28,082.85
  6. Step 6: Final answer
    x = 21,162.69

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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.