Home / 31,125.08-42,951.64-17,697.80

Finding the Fourth Proportional to 31,125.08, 42,951.64 and 17,697.80

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Solution

The fourth proportional to 31,125.08, 42,951.64 and 17,697.80 is: 24,422.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,125.08 : 42,951.64 = 17,697.80 : x
  2. Step 2: Convert to fraction form
    31,125.08/42,951.64 = 17,697.80/x
  3. Step 3: Cross multiply
    31,125.08x = 42,951.64 × 17,697.80
  4. Step 4: Simplify right side
    31,125.08x = 760,149,534.39
  5. Step 5: Solve for x
    x = 760,149,534.39/31,125.08
  6. Step 6: Final answer
    x = 24,422.41

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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.