Home / 20,714.74-31,060.11-14,148.86

Finding the Fourth Proportional to 20,714.74, 31,060.11 and 14,148.86

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Solution

The fourth proportional to 20,714.74, 31,060.11 and 14,148.86 is: 21,215.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,714.74 : 31,060.11 = 14,148.86 : x
  2. Step 2: Convert to fraction form
    20,714.74/31,060.11 = 14,148.86/x
  3. Step 3: Cross multiply
    20,714.74x = 31,060.11 × 14,148.86
  4. Step 4: Simplify right side
    20,714.74x = 439,465,147.97
  5. Step 5: Solve for x
    x = 439,465,147.97/20,714.74
  6. Step 6: Final answer
    x = 21,215.09

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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.