Home / 38,531.40-57,816.30-21,904.20

Finding the Fourth Proportional to 38,531.40, 57,816.30 and 21,904.20

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Solution

The fourth proportional to 38,531.40, 57,816.30 and 21,904.20 is: 32,867.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,531.40 : 57,816.30 = 21,904.20 : x
  2. Step 2: Convert to fraction form
    38,531.40/57,816.30 = 21,904.20/x
  3. Step 3: Cross multiply
    38,531.40x = 57,816.30 × 21,904.20
  4. Step 4: Simplify right side
    38,531.40x = 1,266,419,798.46
  5. Step 5: Solve for x
    x = 1,266,419,798.46/38,531.40
  6. Step 6: Final answer
    x = 32,867.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.