Home / 22,710.50-34,070.20-7,919.90

Finding the Fourth Proportional to 22,710.50, 34,070.20 and 7,919.90

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Solution

The fourth proportional to 22,710.50, 34,070.20 and 7,919.90 is: 11,881.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,710.50 : 34,070.20 = 7,919.90 : x
  2. Step 2: Convert to fraction form
    22,710.50/34,070.20 = 7,919.90/x
  3. Step 3: Cross multiply
    22,710.50x = 34,070.20 × 7,919.90
  4. Step 4: Simplify right side
    22,710.50x = 269,832,576.98
  5. Step 5: Solve for x
    x = 269,832,576.98/22,710.50
  6. Step 6: Final answer
    x = 11,881.40

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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.