Home / 20,732.30-28,610.51-11,300.87

Finding the Fourth Proportional to 20,732.30, 28,610.51 and 11,300.87

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Solution

The fourth proportional to 20,732.30, 28,610.51 and 11,300.87 is: 15,595.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732.30 : 28,610.51 = 11,300.87 : x
  2. Step 2: Convert to fraction form
    20,732.30/28,610.51 = 11,300.87/x
  3. Step 3: Cross multiply
    20,732.30x = 28,610.51 × 11,300.87
  4. Step 4: Simplify right side
    20,732.30x = 323,323,496.97
  5. Step 5: Solve for x
    x = 323,323,496.97/20,732.30
  6. Step 6: Final answer
    x = 15,595.16

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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.