Home / 38,565.12-53,219.28-21,569.76

Finding the Fourth Proportional to 38,565.12, 53,219.28 and 21,569.76

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Solution

The fourth proportional to 38,565.12, 53,219.28 and 21,569.76 is: 29,765.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,565.12 : 53,219.28 = 21,569.76 : x
  2. Step 2: Convert to fraction form
    38,565.12/53,219.28 = 21,569.76/x
  3. Step 3: Cross multiply
    38,565.12x = 53,219.28 × 21,569.76
  4. Step 4: Simplify right side
    38,565.12x = 1,147,927,096.97
  5. Step 5: Solve for x
    x = 1,147,927,096.97/38,565.12
  6. Step 6: Final answer
    x = 29,765.94

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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.