Home / 20,260.80-30,404.47-9,167.59

Finding the Fourth Proportional to 20,260.80, 30,404.47 and 9,167.59

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Solution

The fourth proportional to 20,260.80, 30,404.47 and 9,167.59 is: 13,757.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.80 : 30,404.47 = 9,167.59 : x
  2. Step 2: Convert to fraction form
    20,260.80/30,404.47 = 9,167.59/x
  3. Step 3: Cross multiply
    20,260.80x = 30,404.47 × 9,167.59
  4. Step 4: Simplify right side
    20,260.80x = 278,735,637.80
  5. Step 5: Solve for x
    x = 278,735,637.80/20,260.80
  6. Step 6: Final answer
    x = 13,757.38

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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.