Home / 31,108.98-46,646.16-18,463.88

Finding the Fourth Proportional to 31,108.98, 46,646.16 and 18,463.88

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Solution

The fourth proportional to 31,108.98, 46,646.16 and 18,463.88 is: 27,685.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,108.98 : 46,646.16 = 18,463.88 : x
  2. Step 2: Convert to fraction form
    31,108.98/46,646.16 = 18,463.88/x
  3. Step 3: Cross multiply
    31,108.98x = 46,646.16 × 18,463.88
  4. Step 4: Simplify right side
    31,108.98x = 861,268,867.47
  5. Step 5: Solve for x
    x = 861,268,867.47/31,108.98
  6. Step 6: Final answer
    x = 27,685.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.