Home / 39,651.75-54,714.38-21,742.04

Finding the Fourth Proportional to 39,651.75, 54,714.38 and 21,742.04

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Solution

The fourth proportional to 39,651.75, 54,714.38 and 21,742.04 is: 30,001.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,651.75 : 54,714.38 = 21,742.04 : x
  2. Step 2: Convert to fraction form
    39,651.75/54,714.38 = 21,742.04/x
  3. Step 3: Cross multiply
    39,651.75x = 54,714.38 × 21,742.04
  4. Step 4: Simplify right side
    39,651.75x = 1,189,602,266.61
  5. Step 5: Solve for x
    x = 1,189,602,266.61/39,651.75
  6. Step 6: Final answer
    x = 30,001.26

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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.