Home / 17,985.89-24,819.62-9,920.95

Finding the Fourth Proportional to 17,985.89, 24,819.62 and 9,920.95

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Solution

The fourth proportional to 17,985.89, 24,819.62 and 9,920.95 is: 13,690.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,985.89 : 24,819.62 = 9,920.95 : x
  2. Step 2: Convert to fraction form
    17,985.89/24,819.62 = 9,920.95/x
  3. Step 3: Cross multiply
    17,985.89x = 24,819.62 × 9,920.95
  4. Step 4: Simplify right side
    17,985.89x = 246,234,209.04
  5. Step 5: Solve for x
    x = 246,234,209.04/17,985.89
  6. Step 6: Final answer
    x = 13,690.41

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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.