Home / 28,122.04-38,806.90-15,546.04

Finding the Fourth Proportional to 28,122.04, 38,806.90 and 15,546.04

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Solution

The fourth proportional to 28,122.04, 38,806.90 and 15,546.04 is: 21,452.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,122.04 : 38,806.90 = 15,546.04 : x
  2. Step 2: Convert to fraction form
    28,122.04/38,806.90 = 15,546.04/x
  3. Step 3: Cross multiply
    28,122.04x = 38,806.90 × 15,546.04
  4. Step 4: Simplify right side
    28,122.04x = 603,293,619.68
  5. Step 5: Solve for x
    x = 603,293,619.68/28,122.04
  6. Step 6: Final answer
    x = 21,452.70

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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.