Home / 22,145.60-33,218.40-7,356.80

Finding the Fourth Proportional to 22,145.60, 33,218.40 and 7,356.80

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Solution

The fourth proportional to 22,145.60, 33,218.40 and 7,356.80 is: 11,035.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,145.60 : 33,218.40 = 7,356.80 : x
  2. Step 2: Convert to fraction form
    22,145.60/33,218.40 = 7,356.80/x
  3. Step 3: Cross multiply
    22,145.60x = 33,218.40 × 7,356.80
  4. Step 4: Simplify right side
    22,145.60x = 244,381,125.12
  5. Step 5: Solve for x
    x = 244,381,125.12/22,145.60
  6. Step 6: Final answer
    x = 11,035.20

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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.