Home / 31,134-42,964.92-16,987.14

Finding the Fourth Proportional to 31,134, 42,964.92 and 16,987.14

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Solution

The fourth proportional to 31,134, 42,964.92 and 16,987.14 is: 23,442.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,134 : 42,964.92 = 16,987.14 : x
  2. Step 2: Convert to fraction form
    31,134/42,964.92 = 16,987.14/x
  3. Step 3: Cross multiply
    31,134x = 42,964.92 × 16,987.14
  4. Step 4: Simplify right side
    31,134x = 729,851,111.13
  5. Step 5: Solve for x
    x = 729,851,111.13/31,134
  6. Step 6: Final answer
    x = 23,442.25

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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.