Home / 39,765.76-59,644.80-20,036.48

Finding the Fourth Proportional to 39,765.76, 59,644.80 and 20,036.48

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Solution

The fourth proportional to 39,765.76, 59,644.80 and 20,036.48 is: 30,052.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,765.76 : 59,644.80 = 20,036.48 : x
  2. Step 2: Convert to fraction form
    39,765.76/59,644.80 = 20,036.48/x
  3. Step 3: Cross multiply
    39,765.76x = 59,644.80 × 20,036.48
  4. Step 4: Simplify right side
    39,765.76x = 1,195,071,842.30
  5. Step 5: Solve for x
    x = 1,195,071,842.30/39,765.76
  6. Step 6: Final answer
    x = 30,052.79

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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.