Home / 22,659.40-33,988.20-7,871.68

Finding the Fourth Proportional to 22,659.40, 33,988.20 and 7,871.68

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Solution

The fourth proportional to 22,659.40, 33,988.20 and 7,871.68 is: 11,807.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,659.40 : 33,988.20 = 7,871.68 : x
  2. Step 2: Convert to fraction form
    22,659.40/33,988.20 = 7,871.68/x
  3. Step 3: Cross multiply
    22,659.40x = 33,988.20 × 7,871.68
  4. Step 4: Simplify right side
    22,659.40x = 267,544,234.18
  5. Step 5: Solve for x
    x = 267,544,234.18/22,659.40
  6. Step 6: Final answer
    x = 11,807.21

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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.