Home / 20,422.17-28,182.06-11,469.24

Finding the Fourth Proportional to 20,422.17, 28,182.06 and 11,469.24

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Solution

The fourth proportional to 20,422.17, 28,182.06 and 11,469.24 is: 15,827.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,422.17 : 28,182.06 = 11,469.24 : x
  2. Step 2: Convert to fraction form
    20,422.17/28,182.06 = 11,469.24/x
  3. Step 3: Cross multiply
    20,422.17x = 28,182.06 × 11,469.24
  4. Step 4: Simplify right side
    20,422.17x = 323,226,809.83
  5. Step 5: Solve for x
    x = 323,226,809.83/20,422.17
  6. Step 6: Final answer
    x = 15,827.25

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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.