Home / 15,685.38-23,528.70-3,998.70

Finding the Fourth Proportional to 15,685.38, 23,528.70 and 3,998.70

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Solution

The fourth proportional to 15,685.38, 23,528.70 and 3,998.70 is: 5,998.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,685.38 : 23,528.70 = 3,998.70 : x
  2. Step 2: Convert to fraction form
    15,685.38/23,528.70 = 3,998.70/x
  3. Step 3: Cross multiply
    15,685.38x = 23,528.70 × 3,998.70
  4. Step 4: Simplify right side
    15,685.38x = 94,084,212.69
  5. Step 5: Solve for x
    x = 94,084,212.69/15,685.38
  6. Step 6: Final answer
    x = 5,998.21

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Double scale
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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.