Home / 31,542.40-47,313.60-30,332.80

Finding the Fourth Proportional to 31,542.40, 47,313.60 and 30,332.80

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Solution

The fourth proportional to 31,542.40, 47,313.60 and 30,332.80 is: 45,499.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,542.40 : 47,313.60 = 30,332.80 : x
  2. Step 2: Convert to fraction form
    31,542.40/47,313.60 = 30,332.80/x
  3. Step 3: Cross multiply
    31,542.40x = 47,313.60 × 30,332.80
  4. Step 4: Simplify right side
    31,542.40x = 1,435,153,966.08
  5. Step 5: Solve for x
    x = 1,435,153,966.08/31,542.40
  6. Step 6: Final answer
    x = 45,499.20

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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.