Home / 57,948.88-86,930.61-20,500.15

Finding the Fourth Proportional to 57,948.88, 86,930.61 and 20,500.15

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Solution

The fourth proportional to 57,948.88, 86,930.61 and 20,500.15 is: 30,752.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,948.88 : 86,930.61 = 20,500.15 : x
  2. Step 2: Convert to fraction form
    57,948.88/86,930.61 = 20,500.15/x
  3. Step 3: Cross multiply
    57,948.88x = 86,930.61 × 20,500.15
  4. Step 4: Simplify right side
    57,948.88x = 1,782,090,544.59
  5. Step 5: Solve for x
    x = 1,782,090,544.59/57,948.88
  6. Step 6: Final answer
    x = 30,752.80

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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.