Home / 28,721.57-43,082.37-9,001.68

Finding the Fourth Proportional to 28,721.57, 43,082.37 and 9,001.68

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Solution

The fourth proportional to 28,721.57, 43,082.37 and 9,001.68 is: 13,502.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,721.57 : 43,082.37 = 9,001.68 : x
  2. Step 2: Convert to fraction form
    28,721.57/43,082.37 = 9,001.68/x
  3. Step 3: Cross multiply
    28,721.57x = 43,082.37 × 9,001.68
  4. Step 4: Simplify right side
    28,721.57x = 387,813,708.38
  5. Step 5: Solve for x
    x = 387,813,708.38/28,721.57
  6. Step 6: Final answer
    x = 13,502.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.