Home / 20,292.08-28,010.88-18,163.86

Finding the Fourth Proportional to 20,292.08, 28,010.88 and 18,163.86

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Solution

The fourth proportional to 20,292.08, 28,010.88 and 18,163.86 is: 25,073.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,292.08 : 28,010.88 = 18,163.86 : x
  2. Step 2: Convert to fraction form
    20,292.08/28,010.88 = 18,163.86/x
  3. Step 3: Cross multiply
    20,292.08x = 28,010.88 × 18,163.86
  4. Step 4: Simplify right side
    20,292.08x = 508,785,702.80
  5. Step 5: Solve for x
    x = 508,785,702.80/20,292.08
  6. Step 6: Final answer
    x = 25,073.12

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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.