Home / 38,534.80-53,177.86-21,539.02

Finding the Fourth Proportional to 38,534.80, 53,177.86 and 21,539.02

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Solution

The fourth proportional to 38,534.80, 53,177.86 and 21,539.02 is: 29,723.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,534.80 : 53,177.86 = 21,539.02 : x
  2. Step 2: Convert to fraction form
    38,534.80/53,177.86 = 21,539.02/x
  3. Step 3: Cross multiply
    38,534.80x = 53,177.86 × 21,539.02
  4. Step 4: Simplify right side
    38,534.80x = 1,145,398,990.10
  5. Step 5: Solve for x
    x = 1,145,398,990.10/38,534.80
  6. Step 6: Final answer
    x = 29,723.76

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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.