Home / 20,518.29-28,276.56-14,843.42

Finding the Fourth Proportional to 20,518.29, 28,276.56 and 14,843.42

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Solution

The fourth proportional to 20,518.29, 28,276.56 and 14,843.42 is: 20,455.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,518.29 : 28,276.56 = 14,843.42 : x
  2. Step 2: Convert to fraction form
    20,518.29/28,276.56 = 14,843.42/x
  3. Step 3: Cross multiply
    20,518.29x = 28,276.56 × 14,843.42
  4. Step 4: Simplify right side
    20,518.29x = 419,720,714.85
  5. Step 5: Solve for x
    x = 419,720,714.85/20,518.29
  6. Step 6: Final answer
    x = 20,455.93

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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.