Home / 22,200.92-30,637.56-12,129.32

Finding the Fourth Proportional to 22,200.92, 30,637.56 and 12,129.32

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Solution

The fourth proportional to 22,200.92, 30,637.56 and 12,129.32 is: 16,738.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,200.92 : 30,637.56 = 12,129.32 : x
  2. Step 2: Convert to fraction form
    22,200.92/30,637.56 = 12,129.32/x
  3. Step 3: Cross multiply
    22,200.92x = 30,637.56 × 12,129.32
  4. Step 4: Simplify right side
    22,200.92x = 371,612,769.26
  5. Step 5: Solve for x
    x = 371,612,769.26/22,200.92
  6. Step 6: Final answer
    x = 16,738.62

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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.