Home / 22,965.20-34,390.20-15,131.60

Finding the Fourth Proportional to 22,965.20, 34,390.20 and 15,131.60

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Solution

The fourth proportional to 22,965.20, 34,390.20 and 15,131.60 is: 22,659.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,965.20 : 34,390.20 = 15,131.60 : x
  2. Step 2: Convert to fraction form
    22,965.20/34,390.20 = 15,131.60/x
  3. Step 3: Cross multiply
    22,965.20x = 34,390.20 × 15,131.60
  4. Step 4: Simplify right side
    22,965.20x = 520,378,750.32
  5. Step 5: Solve for x
    x = 520,378,750.32/22,965.20
  6. Step 6: Final answer
    x = 22,659.45

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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.