Home / 28,266.72-42,414.24-13,471.92

Finding the Fourth Proportional to 28,266.72, 42,414.24 and 13,471.92

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Solution

The fourth proportional to 28,266.72, 42,414.24 and 13,471.92 is: 20,214.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,266.72 : 42,414.24 = 13,471.92 : x
  2. Step 2: Convert to fraction form
    28,266.72/42,414.24 = 13,471.92/x
  3. Step 3: Cross multiply
    28,266.72x = 42,414.24 × 13,471.92
  4. Step 4: Simplify right side
    28,266.72x = 571,401,248.14
  5. Step 5: Solve for x
    x = 571,401,248.14/28,266.72
  6. Step 6: Final answer
    x = 20,214.63

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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.