Home / 22,139.10-33,220.80-9,000.90

Finding the Fourth Proportional to 22,139.10, 33,220.80 and 9,000.90

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Solution

The fourth proportional to 22,139.10, 33,220.80 and 9,000.90 is: 13,506.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,139.10 : 33,220.80 = 9,000.90 : x
  2. Step 2: Convert to fraction form
    22,139.10/33,220.80 = 9,000.90/x
  3. Step 3: Cross multiply
    22,139.10x = 33,220.80 × 9,000.90
  4. Step 4: Simplify right side
    22,139.10x = 299,017,098.72
  5. Step 5: Solve for x
    x = 299,017,098.72/22,139.10
  6. Step 6: Final answer
    x = 13,506.29

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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.