Home / 30,909.07-42,654.02-17,479.83

Finding the Fourth Proportional to 30,909.07, 42,654.02 and 17,479.83

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Solution

The fourth proportional to 30,909.07, 42,654.02 and 17,479.83 is: 24,121.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,909.07 : 42,654.02 = 17,479.83 : x
  2. Step 2: Convert to fraction form
    30,909.07/42,654.02 = 17,479.83/x
  3. Step 3: Cross multiply
    30,909.07x = 42,654.02 × 17,479.83
  4. Step 4: Simplify right side
    30,909.07x = 745,584,780.24
  5. Step 5: Solve for x
    x = 745,584,780.24/30,909.07
  6. Step 6: Final answer
    x = 24,121.88

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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.