Home / 38,728.03-53,444.53-21,732.23

Finding the Fourth Proportional to 38,728.03, 53,444.53 and 21,732.23

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Solution

The fourth proportional to 38,728.03, 53,444.53 and 21,732.23 is: 29,990.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,728.03 : 53,444.53 = 21,732.23 : x
  2. Step 2: Convert to fraction form
    38,728.03/53,444.53 = 21,732.23/x
  3. Step 3: Cross multiply
    38,728.03x = 53,444.53 × 21,732.23
  4. Step 4: Simplify right side
    38,728.03x = 1,161,468,897.48
  5. Step 5: Solve for x
    x = 1,161,468,897.48/38,728.03
  6. Step 6: Final answer
    x = 29,990.40

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Half scale
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Similar ratio
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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.