Home / 31,742.38-47,613.98-21,879.01

Finding the Fourth Proportional to 31,742.38, 47,613.98 and 21,879.01

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Solution

The fourth proportional to 31,742.38, 47,613.98 and 21,879.01 is: 32,818.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,742.38 : 47,613.98 = 21,879.01 : x
  2. Step 2: Convert to fraction form
    31,742.38/47,613.98 = 21,879.01/x
  3. Step 3: Cross multiply
    31,742.38x = 47,613.98 × 21,879.01
  4. Step 4: Simplify right side
    31,742.38x = 1,041,746,735.71
  5. Step 5: Solve for x
    x = 1,041,746,735.71/31,742.38
  6. Step 6: Final answer
    x = 32,818.80

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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.