Home / 22,109.38-33,158.60-13,785.11

Finding the Fourth Proportional to 22,109.38, 33,158.60 and 13,785.11

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Solution

The fourth proportional to 22,109.38, 33,158.60 and 13,785.11 is: 20,674.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,109.38 : 33,158.60 = 13,785.11 : x
  2. Step 2: Convert to fraction form
    22,109.38/33,158.60 = 13,785.11/x
  3. Step 3: Cross multiply
    22,109.38x = 33,158.60 × 13,785.11
  4. Step 4: Simplify right side
    22,109.38x = 457,094,948.45
  5. Step 5: Solve for x
    x = 457,094,948.45/22,109.38
  6. Step 6: Final answer
    x = 20,674.25

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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.