Home / 31,456.23-47,187.61-10,103.55

Finding the Fourth Proportional to 31,456.23, 47,187.61 and 10,103.55

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Solution

The fourth proportional to 31,456.23, 47,187.61 and 10,103.55 is: 15,156.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,456.23 : 47,187.61 = 10,103.55 : x
  2. Step 2: Convert to fraction form
    31,456.23/47,187.61 = 10,103.55/x
  3. Step 3: Cross multiply
    31,456.23x = 47,187.61 × 10,103.55
  4. Step 4: Simplify right side
    31,456.23x = 476,762,377.02
  5. Step 5: Solve for x
    x = 476,762,377.02/31,456.23
  6. Step 6: Final answer
    x = 15,156.37

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1.5x scale

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.