Home / 31,427.88-47,149.50-10,651.56

Finding the Fourth Proportional to 31,427.88, 47,149.50 and 10,651.56

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Solution

The fourth proportional to 31,427.88, 47,149.50 and 10,651.56 is: 15,979.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,427.88 : 47,149.50 = 10,651.56 : x
  2. Step 2: Convert to fraction form
    31,427.88/47,149.50 = 10,651.56/x
  3. Step 3: Cross multiply
    31,427.88x = 47,149.50 × 10,651.56
  4. Step 4: Simplify right side
    31,427.88x = 502,215,728.22
  5. Step 5: Solve for x
    x = 502,215,728.22/31,427.88
  6. Step 6: Final answer
    x = 15,979.94

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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.