Home / 28,121.04-38,805.52-15,545.04

Finding the Fourth Proportional to 28,121.04, 38,805.52 and 15,545.04

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Solution

The fourth proportional to 28,121.04, 38,805.52 and 15,545.04 is: 21,451.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,121.04 : 38,805.52 = 15,545.04 : x
  2. Step 2: Convert to fraction form
    28,121.04/38,805.52 = 15,545.04/x
  3. Step 3: Cross multiply
    28,121.04x = 38,805.52 × 15,545.04
  4. Step 4: Simplify right side
    28,121.04x = 603,233,360.62
  5. Step 5: Solve for x
    x = 603,233,360.62/28,121.04
  6. Step 6: Final answer
    x = 21,451.32

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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.