Home / 31,407.66-47,022.39-28,451.43

Finding the Fourth Proportional to 31,407.66, 47,022.39 and 28,451.43

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Solution

The fourth proportional to 31,407.66, 47,022.39 and 28,451.43 is: 42,596.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,407.66 : 47,022.39 = 28,451.43 : x
  2. Step 2: Convert to fraction form
    31,407.66/47,022.39 = 28,451.43/x
  3. Step 3: Cross multiply
    31,407.66x = 47,022.39 × 28,451.43
  4. Step 4: Simplify right side
    31,407.66x = 1,337,854,237.52
  5. Step 5: Solve for x
    x = 1,337,854,237.52/31,407.66
  6. Step 6: Final answer
    x = 42,596.43

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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.