Home / 22,813.60-34,220.40-15,815.20

Finding the Fourth Proportional to 22,813.60, 34,220.40 and 15,815.20

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Solution

The fourth proportional to 22,813.60, 34,220.40 and 15,815.20 is: 23,722.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,813.60 : 34,220.40 = 15,815.20 : x
  2. Step 2: Convert to fraction form
    22,813.60/34,220.40 = 15,815.20/x
  3. Step 3: Cross multiply
    22,813.60x = 34,220.40 × 15,815.20
  4. Step 4: Simplify right side
    22,813.60x = 541,202,470.08
  5. Step 5: Solve for x
    x = 541,202,470.08/22,813.60
  6. Step 6: Final answer
    x = 23,722.80

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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.