Home / 20,118.36-30,155.66-10,244.04

Finding the Fourth Proportional to 20,118.36, 30,155.66 and 10,244.04

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Solution

The fourth proportional to 20,118.36, 30,155.66 and 10,244.04 is: 15,354.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,118.36 : 30,155.66 = 10,244.04 : x
  2. Step 2: Convert to fraction form
    20,118.36/30,155.66 = 10,244.04/x
  3. Step 3: Cross multiply
    20,118.36x = 30,155.66 × 10,244.04
  4. Step 4: Simplify right side
    20,118.36x = 308,915,787.27
  5. Step 5: Solve for x
    x = 308,915,787.27/20,118.36
  6. Step 6: Final answer
    x = 15,354.92

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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.