Home / 38,272.68-52,821.18-21,505.68

Finding the Fourth Proportional to 38,272.68, 52,821.18 and 21,505.68

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Solution

The fourth proportional to 38,272.68, 52,821.18 and 21,505.68 is: 29,680.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,272.68 : 52,821.18 = 21,505.68 : x
  2. Step 2: Convert to fraction form
    38,272.68/52,821.18 = 21,505.68/x
  3. Step 3: Cross multiply
    38,272.68x = 52,821.18 × 21,505.68
  4. Step 4: Simplify right side
    38,272.68x = 1,135,955,394.30
  5. Step 5: Solve for x
    x = 1,135,955,394.30/38,272.68
  6. Step 6: Final answer
    x = 29,680.58

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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.