Home / 47,809.38-71,711.32-18,230.20

Finding the Fourth Proportional to 47,809.38, 71,711.32 and 18,230.20

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Solution

The fourth proportional to 47,809.38, 71,711.32 and 18,230.20 is: 27,344.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,809.38 : 71,711.32 = 18,230.20 : x
  2. Step 2: Convert to fraction form
    47,809.38/71,711.32 = 18,230.20/x
  3. Step 3: Cross multiply
    47,809.38x = 71,711.32 × 18,230.20
  4. Step 4: Simplify right side
    47,809.38x = 1,307,311,705.86
  5. Step 5: Solve for x
    x = 1,307,311,705.86/47,809.38
  6. Step 6: Final answer
    x = 27,344.25

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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.