Home / 28,125.40-38,815.62-15,552.52

Finding the Fourth Proportional to 28,125.40, 38,815.62 and 15,552.52

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Solution

The fourth proportional to 28,125.40, 38,815.62 and 15,552.52 is: 21,463.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,125.40 : 38,815.62 = 15,552.52 : x
  2. Step 2: Convert to fraction form
    28,125.40/38,815.62 = 15,552.52/x
  3. Step 3: Cross multiply
    28,125.40x = 38,815.62 × 15,552.52
  4. Step 4: Simplify right side
    28,125.40x = 603,680,706.36
  5. Step 5: Solve for x
    x = 603,680,706.36/28,125.40
  6. Step 6: Final answer
    x = 21,463.90

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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.