Home / 31,001.87-42,781.68-17,574.36

Finding the Fourth Proportional to 31,001.87, 42,781.68 and 17,574.36

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Solution

The fourth proportional to 31,001.87, 42,781.68 and 17,574.36 is: 24,252.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,001.87 : 42,781.68 = 17,574.36 : x
  2. Step 2: Convert to fraction form
    31,001.87/42,781.68 = 17,574.36/x
  3. Step 3: Cross multiply
    31,001.87x = 42,781.68 × 17,574.36
  4. Step 4: Simplify right side
    31,001.87x = 751,860,645.72
  5. Step 5: Solve for x
    x = 751,860,645.72/31,001.87
  6. Step 6: Final answer
    x = 24,252.11

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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.