Home / 57,711.48-86,556.28-20,262.75

Finding the Fourth Proportional to 57,711.48, 86,556.28 and 20,262.75

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Solution

The fourth proportional to 57,711.48, 86,556.28 and 20,262.75 is: 30,390.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,711.48 : 86,556.28 = 20,262.75 : x
  2. Step 2: Convert to fraction form
    57,711.48/86,556.28 = 20,262.75/x
  3. Step 3: Cross multiply
    57,711.48x = 86,556.28 × 20,262.75
  4. Step 4: Simplify right side
    57,711.48x = 1,753,868,262.57
  5. Step 5: Solve for x
    x = 1,753,868,262.57/57,711.48
  6. Step 6: Final answer
    x = 30,390.28

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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.