Home / 20,952.04-28,913.82-11,521.24

Finding the Fourth Proportional to 20,952.04, 28,913.82 and 11,521.24

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Solution

The fourth proportional to 20,952.04, 28,913.82 and 11,521.24 is: 15,899.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,952.04 : 28,913.82 = 11,521.24 : x
  2. Step 2: Convert to fraction form
    20,952.04/28,913.82 = 11,521.24/x
  3. Step 3: Cross multiply
    20,952.04x = 28,913.82 × 11,521.24
  4. Step 4: Simplify right side
    20,952.04x = 333,123,059.54
  5. Step 5: Solve for x
    x = 333,123,059.54/20,952.04
  6. Step 6: Final answer
    x = 15,899.31

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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.