Home / 22,719.20-34,080.36-7,931.84

Finding the Fourth Proportional to 22,719.20, 34,080.36 and 7,931.84

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Solution

The fourth proportional to 22,719.20, 34,080.36 and 7,931.84 is: 11,898.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,719.20 : 34,080.36 = 7,931.84 : x
  2. Step 2: Convert to fraction form
    22,719.20/34,080.36 = 7,931.84/x
  3. Step 3: Cross multiply
    22,719.20x = 34,080.36 × 7,931.84
  4. Step 4: Simplify right side
    22,719.20x = 270,319,962.66
  5. Step 5: Solve for x
    x = 270,319,962.66/22,719.20
  6. Step 6: Final answer
    x = 11,898.30

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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.