Home / 39,403.58-59,103.18-12,749.04

Finding the Fourth Proportional to 39,403.58, 59,103.18 and 12,749.04

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Solution

The fourth proportional to 39,403.58, 59,103.18 and 12,749.04 is: 19,122.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,403.58 : 59,103.18 = 12,749.04 : x
  2. Step 2: Convert to fraction form
    39,403.58/59,103.18 = 12,749.04/x
  3. Step 3: Cross multiply
    39,403.58x = 59,103.18 × 12,749.04
  4. Step 4: Simplify right side
    39,403.58x = 753,508,805.95
  5. Step 5: Solve for x
    x = 753,508,805.95/39,403.58
  6. Step 6: Final answer
    x = 19,122.85

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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.