Home / 31,122.44-42,948.24-16,975.40

Finding the Fourth Proportional to 31,122.44, 42,948.24 and 16,975.40

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Solution

The fourth proportional to 31,122.44, 42,948.24 and 16,975.40 is: 23,425.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,122.44 : 42,948.24 = 16,975.40 : x
  2. Step 2: Convert to fraction form
    31,122.44/42,948.24 = 16,975.40/x
  3. Step 3: Cross multiply
    31,122.44x = 42,948.24 × 16,975.40
  4. Step 4: Simplify right side
    31,122.44x = 729,063,553.30
  5. Step 5: Solve for x
    x = 729,063,553.30/31,122.44
  6. Step 6: Final answer
    x = 23,425.66

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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.