Home / 20,714.38-28,585.95-11,282.96

Finding the Fourth Proportional to 20,714.38, 28,585.95 and 11,282.96

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Solution

The fourth proportional to 20,714.38, 28,585.95 and 11,282.96 is: 15,570.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,714.38 : 28,585.95 = 11,282.96 : x
  2. Step 2: Convert to fraction form
    20,714.38/28,585.95 = 11,282.96/x
  3. Step 3: Cross multiply
    20,714.38x = 28,585.95 × 11,282.96
  4. Step 4: Simplify right side
    20,714.38x = 322,534,130.41
  5. Step 5: Solve for x
    x = 322,534,130.41/20,714.38
  6. Step 6: Final answer
    x = 15,570.55

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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.