Home / 38,553.12-53,202.36-21,557.52

Finding the Fourth Proportional to 38,553.12, 53,202.36 and 21,557.52

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Solution

The fourth proportional to 38,553.12, 53,202.36 and 21,557.52 is: 29,748.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,553.12 : 53,202.36 = 21,557.52 : x
  2. Step 2: Convert to fraction form
    38,553.12/53,202.36 = 21,557.52/x
  3. Step 3: Cross multiply
    38,553.12x = 53,202.36 × 21,557.52
  4. Step 4: Simplify right side
    38,553.12x = 1,146,910,939.75
  5. Step 5: Solve for x
    x = 1,146,910,939.75/38,553.12
  6. Step 6: Final answer
    x = 29,748.85

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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.