Home / 20,635.08-30,930.45-13,516.59

Finding the Fourth Proportional to 20,635.08, 30,930.45 and 13,516.59

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Solution

The fourth proportional to 20,635.08, 30,930.45 and 13,516.59 is: 20,260.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,635.08 : 30,930.45 = 13,516.59 : x
  2. Step 2: Convert to fraction form
    20,635.08/30,930.45 = 13,516.59/x
  3. Step 3: Cross multiply
    20,635.08x = 30,930.45 × 13,516.59
  4. Step 4: Simplify right side
    20,635.08x = 418,074,211.17
  5. Step 5: Solve for x
    x = 418,074,211.17/20,635.08
  6. Step 6: Final answer
    x = 20,260.36

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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.