Home / 39,669.12-59,397.03-20,910.15

Finding the Fourth Proportional to 39,669.12, 59,397.03 and 20,910.15

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Solution

The fourth proportional to 39,669.12, 59,397.03 and 20,910.15 is: 31,309.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,669.12 : 59,397.03 = 20,910.15 : x
  2. Step 2: Convert to fraction form
    39,669.12/59,397.03 = 20,910.15/x
  3. Step 3: Cross multiply
    39,669.12x = 59,397.03 × 20,910.15
  4. Step 4: Simplify right side
    39,669.12x = 1,242,000,806.85
  5. Step 5: Solve for x
    x = 1,242,000,806.85/39,669.12
  6. Step 6: Final answer
    x = 31,309.01

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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.