Home / 38,919.18-53,711.20-22,152.18

Finding the Fourth Proportional to 38,919.18, 53,711.20 and 22,152.18

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Solution

The fourth proportional to 38,919.18, 53,711.20 and 22,152.18 is: 30,571.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,919.18 : 53,711.20 = 22,152.18 : x
  2. Step 2: Convert to fraction form
    38,919.18/53,711.20 = 22,152.18/x
  3. Step 3: Cross multiply
    38,919.18x = 53,711.20 × 22,152.18
  4. Step 4: Simplify right side
    38,919.18x = 1,189,820,170.42
  5. Step 5: Solve for x
    x = 1,189,820,170.42/38,919.18
  6. Step 6: Final answer
    x = 30,571.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.