Home / 22,778.22-34,167.63-7,987.57

Finding the Fourth Proportional to 22,778.22, 34,167.63 and 7,987.57

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Solution

The fourth proportional to 22,778.22, 34,167.63 and 7,987.57 is: 11,981.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,778.22 : 34,167.63 = 7,987.57 : x
  2. Step 2: Convert to fraction form
    22,778.22/34,167.63 = 7,987.57/x
  3. Step 3: Cross multiply
    22,778.22x = 34,167.63 × 7,987.57
  4. Step 4: Simplify right side
    22,778.22x = 272,916,280.89
  5. Step 5: Solve for x
    x = 272,916,280.89/22,778.22
  6. Step 6: Final answer
    x = 11,981.46

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1.5x scale

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.