Home / 39,765.84-59,655.24-13,103.88

Finding the Fourth Proportional to 39,765.84, 59,655.24 and 13,103.88

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Solution

The fourth proportional to 39,765.84, 59,655.24 and 13,103.88 is: 19,657.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,765.84 : 59,655.24 = 13,103.88 : x
  2. Step 2: Convert to fraction form
    39,765.84/59,655.24 = 13,103.88/x
  3. Step 3: Cross multiply
    39,765.84x = 59,655.24 × 13,103.88
  4. Step 4: Simplify right side
    39,765.84x = 781,715,106.33
  5. Step 5: Solve for x
    x = 781,715,106.33/39,765.84
  6. Step 6: Final answer
    x = 19,657.96

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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.