Home / 22,979.80-34,461.60-8,189.20

Finding the Fourth Proportional to 22,979.80, 34,461.60 and 8,189.20

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Solution

The fourth proportional to 22,979.80, 34,461.60 and 8,189.20 is: 12,280.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,979.80 : 34,461.60 = 8,189.20 : x
  2. Step 2: Convert to fraction form
    22,979.80/34,461.60 = 8,189.20/x
  3. Step 3: Cross multiply
    22,979.80x = 34,461.60 × 8,189.20
  4. Step 4: Simplify right side
    22,979.80x = 282,212,934.72
  5. Step 5: Solve for x
    x = 282,212,934.72/22,979.80
  6. Step 6: Final answer
    x = 12,280.91

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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.