Home / 47,281.56-65,275.22-31,387.74

Finding the Fourth Proportional to 47,281.56, 65,275.22 and 31,387.74

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Solution

The fourth proportional to 47,281.56, 65,275.22 and 31,387.74 is: 43,332.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,281.56 : 65,275.22 = 31,387.74 : x
  2. Step 2: Convert to fraction form
    47,281.56/65,275.22 = 31,387.74/x
  3. Step 3: Cross multiply
    47,281.56x = 65,275.22 × 31,387.74
  4. Step 4: Simplify right side
    47,281.56x = 2,048,841,633.80
  5. Step 5: Solve for x
    x = 2,048,841,633.80/47,281.56
  6. Step 6: Final answer
    x = 43,332.78

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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.