Home / 57,988.62-86,984.82-20,543.58

Finding the Fourth Proportional to 57,988.62, 86,984.82 and 20,543.58

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Solution

The fourth proportional to 57,988.62, 86,984.82 and 20,543.58 is: 30,816.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,988.62 : 86,984.82 = 20,543.58 : x
  2. Step 2: Convert to fraction form
    57,988.62/86,984.82 = 20,543.58/x
  3. Step 3: Cross multiply
    57,988.62x = 86,984.82 × 20,543.58
  4. Step 4: Simplify right side
    57,988.62x = 1,786,979,608.46
  5. Step 5: Solve for x
    x = 1,786,979,608.46/57,988.62
  6. Step 6: Final answer
    x = 30,816.04

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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.