Home / 20,292.24-28,002.12-11,911.44

Finding the Fourth Proportional to 20,292.24, 28,002.12 and 11,911.44

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Solution

The fourth proportional to 20,292.24, 28,002.12 and 11,911.44 is: 16,437.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,292.24 : 28,002.12 = 11,911.44 : x
  2. Step 2: Convert to fraction form
    20,292.24/28,002.12 = 11,911.44/x
  3. Step 3: Cross multiply
    20,292.24x = 28,002.12 × 11,911.44
  4. Step 4: Simplify right side
    20,292.24x = 333,545,572.25
  5. Step 5: Solve for x
    x = 333,545,572.25/20,292.24
  6. Step 6: Final answer
    x = 16,437.10

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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.