Home / 20,292.05-28,002.99-11,339.56

Finding the Fourth Proportional to 20,292.05, 28,002.99 and 11,339.56

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Solution

The fourth proportional to 20,292.05, 28,002.99 and 11,339.56 is: 15,648.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,292.05 : 28,002.99 = 11,339.56 : x
  2. Step 2: Convert to fraction form
    20,292.05/28,002.99 = 11,339.56/x
  3. Step 3: Cross multiply
    20,292.05x = 28,002.99 × 11,339.56
  4. Step 4: Simplify right side
    20,292.05x = 317,541,515.28
  5. Step 5: Solve for x
    x = 317,541,515.28/20,292.05
  6. Step 6: Final answer
    x = 15,648.57

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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.