Home / 20,952.97-28,914.36-11,521.46

Finding the Fourth Proportional to 20,952.97, 28,914.36 and 11,521.46

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Solution

The fourth proportional to 20,952.97, 28,914.36 and 11,521.46 is: 15,899.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,952.97 : 28,914.36 = 11,521.46 : x
  2. Step 2: Convert to fraction form
    20,952.97/28,914.36 = 11,521.46/x
  3. Step 3: Cross multiply
    20,952.97x = 28,914.36 × 11,521.46
  4. Step 4: Simplify right side
    20,952.97x = 333,135,642.17
  5. Step 5: Solve for x
    x = 333,135,642.17/20,952.97
  6. Step 6: Final answer
    x = 15,899.21

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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.