Home / 20,714.04-28,585.20-11,282.52

Finding the Fourth Proportional to 20,714.04, 28,585.20 and 11,282.52

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Solution

The fourth proportional to 20,714.04, 28,585.20 and 11,282.52 is: 15,569.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,714.04 : 28,585.20 = 11,282.52 : x
  2. Step 2: Convert to fraction form
    20,714.04/28,585.20 = 11,282.52/x
  3. Step 3: Cross multiply
    20,714.04x = 28,585.20 × 11,282.52
  4. Step 4: Simplify right side
    20,714.04x = 322,513,090.70
  5. Step 5: Solve for x
    x = 322,513,090.70/20,714.04
  6. Step 6: Final answer
    x = 15,569.78

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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.