Home / 21,853.92-30,159.60-16,539.36

Finding the Fourth Proportional to 21,853.92, 30,159.60 and 16,539.36

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Solution

The fourth proportional to 21,853.92, 30,159.60 and 16,539.36 is: 22,825.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,853.92 : 30,159.60 = 16,539.36 : x
  2. Step 2: Convert to fraction form
    21,853.92/30,159.60 = 16,539.36/x
  3. Step 3: Cross multiply
    21,853.92x = 30,159.60 × 16,539.36
  4. Step 4: Simplify right side
    21,853.92x = 498,820,481.86
  5. Step 5: Solve for x
    x = 498,820,481.86/21,853.92
  6. Step 6: Final answer
    x = 22,825.22

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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.