Home / 20,311.72-30,470.47-6,272.91

Finding the Fourth Proportional to 20,311.72, 30,470.47 and 6,272.91

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Solution

The fourth proportional to 20,311.72, 30,470.47 and 6,272.91 is: 9,410.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,311.72 : 30,470.47 = 6,272.91 : x
  2. Step 2: Convert to fraction form
    20,311.72/30,470.47 = 6,272.91/x
  3. Step 3: Cross multiply
    20,311.72x = 30,470.47 × 6,272.91
  4. Step 4: Simplify right side
    20,311.72x = 191,138,500.29
  5. Step 5: Solve for x
    x = 191,138,500.29/20,311.72
  6. Step 6: Final answer
    x = 9,410.26

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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.