Home / 39,493.20-54,499.60-21,587.68

Finding the Fourth Proportional to 39,493.20, 54,499.60 and 21,587.68

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Solution

The fourth proportional to 39,493.20, 54,499.60 and 21,587.68 is: 29,790.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,493.20 : 54,499.60 = 21,587.68 : x
  2. Step 2: Convert to fraction form
    39,493.20/54,499.60 = 21,587.68/x
  3. Step 3: Cross multiply
    39,493.20x = 54,499.60 × 21,587.68
  4. Step 4: Simplify right side
    39,493.20x = 1,176,519,924.93
  5. Step 5: Solve for x
    x = 1,176,519,924.93/39,493.20
  6. Step 6: Final answer
    x = 29,790.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.