Home / 38,528.28-53,170.20-21,531.96

Finding the Fourth Proportional to 38,528.28, 53,170.20 and 21,531.96

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Solution

The fourth proportional to 38,528.28, 53,170.20 and 21,531.96 is: 29,714.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,528.28 : 53,170.20 = 21,531.96 : x
  2. Step 2: Convert to fraction form
    38,528.28/53,170.20 = 21,531.96/x
  3. Step 3: Cross multiply
    38,528.28x = 53,170.20 × 21,531.96
  4. Step 4: Simplify right side
    38,528.28x = 1,144,858,619.59
  5. Step 5: Solve for x
    x = 1,144,858,619.59/38,528.28
  6. Step 6: Final answer
    x = 29,714.76

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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.