Home / 31,132.44-42,963.21-16,985.25

Finding the Fourth Proportional to 31,132.44, 42,963.21 and 16,985.25

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Solution

The fourth proportional to 31,132.44, 42,963.21 and 16,985.25 is: 23,439.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,132.44 : 42,963.21 = 16,985.25 : x
  2. Step 2: Convert to fraction form
    31,132.44/42,963.21 = 16,985.25/x
  3. Step 3: Cross multiply
    31,132.44x = 42,963.21 × 16,985.25
  4. Step 4: Simplify right side
    31,132.44x = 729,740,862.65
  5. Step 5: Solve for x
    x = 729,740,862.65/31,132.44
  6. Step 6: Final answer
    x = 23,439.89

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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.