Home / 26,117.60-39,118.80-15,711.20

Finding the Fourth Proportional to 26,117.60, 39,118.80 and 15,711.20

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Solution

The fourth proportional to 26,117.60, 39,118.80 and 15,711.20 is: 23,532.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,117.60 : 39,118.80 = 15,711.20 : x
  2. Step 2: Convert to fraction form
    26,117.60/39,118.80 = 15,711.20/x
  3. Step 3: Cross multiply
    26,117.60x = 39,118.80 × 15,711.20
  4. Step 4: Simplify right side
    26,117.60x = 614,603,290.56
  5. Step 5: Solve for x
    x = 614,603,290.56/26,117.60
  6. Step 6: Final answer
    x = 23,532.15

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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.