Home / 55,421.76-83,132.64-20,346.24

Finding the Fourth Proportional to 55,421.76, 83,132.64 and 20,346.24

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Solution

The fourth proportional to 55,421.76, 83,132.64 and 20,346.24 is: 30,519.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,421.76 : 83,132.64 = 20,346.24 : x
  2. Step 2: Convert to fraction form
    55,421.76/83,132.64 = 20,346.24/x
  3. Step 3: Cross multiply
    55,421.76x = 83,132.64 × 20,346.24
  4. Step 4: Simplify right side
    55,421.76x = 1,691,436,645.27
  5. Step 5: Solve for x
    x = 1,691,436,645.27/55,421.76
  6. Step 6: Final answer
    x = 30,519.36

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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.