Home / 32,911.19-45,414.36-20,158.55

Finding the Fourth Proportional to 32,911.19, 45,414.36 and 20,158.55

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Solution

The fourth proportional to 32,911.19, 45,414.36 and 20,158.55 is: 27,816.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,911.19 : 45,414.36 = 20,158.55 : x
  2. Step 2: Convert to fraction form
    32,911.19/45,414.36 = 20,158.55/x
  3. Step 3: Cross multiply
    32,911.19x = 45,414.36 × 20,158.55
  4. Step 4: Simplify right side
    32,911.19x = 915,487,646.78
  5. Step 5: Solve for x
    x = 915,487,646.78/32,911.19
  6. Step 6: Final answer
    x = 27,816.91

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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.