Home / 47,310.75-65,289.78-30,572.91

Finding the Fourth Proportional to 47,310.75, 65,289.78 and 30,572.91

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Solution

The fourth proportional to 47,310.75, 65,289.78 and 30,572.91 is: 42,191.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,310.75 : 65,289.78 = 30,572.91 : x
  2. Step 2: Convert to fraction form
    47,310.75/65,289.78 = 30,572.91/x
  3. Step 3: Cross multiply
    47,310.75x = 65,289.78 × 30,572.91
  4. Step 4: Simplify right side
    47,310.75x = 1,996,098,567.86
  5. Step 5: Solve for x
    x = 1,996,098,567.86/47,310.75
  6. Step 6: Final answer
    x = 42,191.23

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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.