Home / 20,282.52-27,989.25-11,329.98

Finding the Fourth Proportional to 20,282.52, 27,989.25 and 11,329.98

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Solution

The fourth proportional to 20,282.52, 27,989.25 and 11,329.98 is: 15,635.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,282.52 : 27,989.25 = 11,329.98 : x
  2. Step 2: Convert to fraction form
    20,282.52/27,989.25 = 11,329.98/x
  3. Step 3: Cross multiply
    20,282.52x = 27,989.25 × 11,329.98
  4. Step 4: Simplify right side
    20,282.52x = 317,117,642.72
  5. Step 5: Solve for x
    x = 317,117,642.72/20,282.52
  6. Step 6: Final answer
    x = 15,635.02

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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.