Home / 31,122.59-42,948.90-16,975.13

Finding the Fourth Proportional to 31,122.59, 42,948.90 and 16,975.13

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Solution

The fourth proportional to 31,122.59, 42,948.90 and 16,975.13 is: 23,425.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,122.59 : 42,948.90 = 16,975.13 : x
  2. Step 2: Convert to fraction form
    31,122.59/42,948.90 = 16,975.13/x
  3. Step 3: Cross multiply
    31,122.59x = 42,948.90 × 16,975.13
  4. Step 4: Simplify right side
    31,122.59x = 729,062,946.11
  5. Step 5: Solve for x
    x = 729,062,946.11/31,122.59
  6. Step 6: Final answer
    x = 23,425.53

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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.