Home / 25,791.57-38,689.50-11,000.79

Finding the Fourth Proportional to 25,791.57, 38,689.50 and 11,000.79

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Solution

The fourth proportional to 25,791.57, 38,689.50 and 11,000.79 is: 16,502.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,791.57 : 38,689.50 = 11,000.79 : x
  2. Step 2: Convert to fraction form
    25,791.57/38,689.50 = 11,000.79/x
  3. Step 3: Cross multiply
    25,791.57x = 38,689.50 × 11,000.79
  4. Step 4: Simplify right side
    25,791.57x = 425,615,064.71
  5. Step 5: Solve for x
    x = 425,615,064.71/25,791.57
  6. Step 6: Final answer
    x = 16,502.10

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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.