Home / 20,842.42-31,267.18-7,694.86

Finding the Fourth Proportional to 20,842.42, 31,267.18 and 7,694.86

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Solution

The fourth proportional to 20,842.42, 31,267.18 and 7,694.86 is: 11,543.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,842.42 : 31,267.18 = 7,694.86 : x
  2. Step 2: Convert to fraction form
    20,842.42/31,267.18 = 7,694.86/x
  3. Step 3: Cross multiply
    20,842.42x = 31,267.18 × 7,694.86
  4. Step 4: Simplify right side
    20,842.42x = 240,596,572.69
  5. Step 5: Solve for x
    x = 240,596,572.69/20,842.42
  6. Step 6: Final answer
    x = 11,543.60

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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.