Home / 39,171.22-58,734.75-12,868.90

Finding the Fourth Proportional to 39,171.22, 58,734.75 and 12,868.90

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Solution

The fourth proportional to 39,171.22, 58,734.75 and 12,868.90 is: 19,296.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,171.22 : 58,734.75 = 12,868.90 : x
  2. Step 2: Convert to fraction form
    39,171.22/58,734.75 = 12,868.90/x
  3. Step 3: Cross multiply
    39,171.22x = 58,734.75 × 12,868.90
  4. Step 4: Simplify right side
    39,171.22x = 755,851,624.28
  5. Step 5: Solve for x
    x = 755,851,624.28/39,171.22
  6. Step 6: Final answer
    x = 19,296.10

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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.