Home / 18,830.76-28,250.85-13,294.92

Finding the Fourth Proportional to 18,830.76, 28,250.85 and 13,294.92

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Solution

The fourth proportional to 18,830.76, 28,250.85 and 13,294.92 is: 19,945.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,830.76 : 28,250.85 = 13,294.92 : x
  2. Step 2: Convert to fraction form
    18,830.76/28,250.85 = 13,294.92/x
  3. Step 3: Cross multiply
    18,830.76x = 28,250.85 × 13,294.92
  4. Step 4: Simplify right side
    18,830.76x = 375,592,790.68
  5. Step 5: Solve for x
    x = 375,592,790.68/18,830.76
  6. Step 6: Final answer
    x = 19,945.71

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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.