Home / 21,997.10-30,331.93-16,342.34

Finding the Fourth Proportional to 21,997.10, 30,331.93 and 16,342.34

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Solution

The fourth proportional to 21,997.10, 30,331.93 and 16,342.34 is: 22,534.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,997.10 : 30,331.93 = 16,342.34 : x
  2. Step 2: Convert to fraction form
    21,997.10/30,331.93 = 16,342.34/x
  3. Step 3: Cross multiply
    21,997.10x = 30,331.93 × 16,342.34
  4. Step 4: Simplify right side
    21,997.10x = 495,694,712.92
  5. Step 5: Solve for x
    x = 495,694,712.92/21,997.10
  6. Step 6: Final answer
    x = 22,534.55

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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.