Home / 22,420.16-33,639.36-11,902.04

Finding the Fourth Proportional to 22,420.16, 33,639.36 and 11,902.04

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Solution

The fourth proportional to 22,420.16, 33,639.36 and 11,902.04 is: 17,857.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,420.16 : 33,639.36 = 11,902.04 : x
  2. Step 2: Convert to fraction form
    22,420.16/33,639.36 = 11,902.04/x
  3. Step 3: Cross multiply
    22,420.16x = 33,639.36 × 11,902.04
  4. Step 4: Simplify right side
    22,420.16x = 400,377,008.29
  5. Step 5: Solve for x
    x = 400,377,008.29/22,420.16
  6. Step 6: Final answer
    x = 17,857.90

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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.