Home / 18,815.24-28,220.52-10,922.04

Finding the Fourth Proportional to 18,815.24, 28,220.52 and 10,922.04

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Solution

The fourth proportional to 18,815.24, 28,220.52 and 10,922.04 is: 16,381.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,815.24 : 28,220.52 = 10,922.04 : x
  2. Step 2: Convert to fraction form
    18,815.24/28,220.52 = 10,922.04/x
  3. Step 3: Cross multiply
    18,815.24x = 28,220.52 × 10,922.04
  4. Step 4: Simplify right side
    18,815.24x = 308,225,648.26
  5. Step 5: Solve for x
    x = 308,225,648.26/18,815.24
  6. Step 6: Final answer
    x = 16,381.70

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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.