Home / 17,954.28-24,743.22-12,909.78

Finding the Fourth Proportional to 17,954.28, 24,743.22 and 12,909.78

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Solution

The fourth proportional to 17,954.28, 24,743.22 and 12,909.78 is: 17,791.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,954.28 : 24,743.22 = 12,909.78 : x
  2. Step 2: Convert to fraction form
    17,954.28/24,743.22 = 12,909.78/x
  3. Step 3: Cross multiply
    17,954.28x = 24,743.22 × 12,909.78
  4. Step 4: Simplify right side
    17,954.28x = 319,429,526.69
  5. Step 5: Solve for x
    x = 319,429,526.69/17,954.28
  6. Step 6: Final answer
    x = 17,791.27

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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.