Home / 28,152.92-38,850.69-15,405.96

Finding the Fourth Proportional to 28,152.92, 38,850.69 and 15,405.96

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Solution

The fourth proportional to 28,152.92, 38,850.69 and 15,405.96 is: 21,260.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,152.92 : 38,850.69 = 15,405.96 : x
  2. Step 2: Convert to fraction form
    28,152.92/38,850.69 = 15,405.96/x
  3. Step 3: Cross multiply
    28,152.92x = 38,850.69 × 15,405.96
  4. Step 4: Simplify right side
    28,152.92x = 598,532,176.11
  5. Step 5: Solve for x
    x = 598,532,176.11/28,152.92
  6. Step 6: Final answer
    x = 21,260.04

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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.