Home / 22,714.83-31,345.38-13,761.77

Finding the Fourth Proportional to 22,714.83, 31,345.38 and 13,761.77

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Solution

The fourth proportional to 22,714.83, 31,345.38 and 13,761.77 is: 18,990.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,714.83 : 31,345.38 = 13,761.77 : x
  2. Step 2: Convert to fraction form
    22,714.83/31,345.38 = 13,761.77/x
  3. Step 3: Cross multiply
    22,714.83x = 31,345.38 × 13,761.77
  4. Step 4: Simplify right side
    22,714.83x = 431,367,753.40
  5. Step 5: Solve for x
    x = 431,367,753.40/22,714.83
  6. Step 6: Final answer
    x = 18,990.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.