Home / 22,201.92-30,638.76-12,130.56

Finding the Fourth Proportional to 22,201.92, 30,638.76 and 12,130.56

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Solution

The fourth proportional to 22,201.92, 30,638.76 and 12,130.56 is: 16,740.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,201.92 : 30,638.76 = 12,130.56 : x
  2. Step 2: Convert to fraction form
    22,201.92/30,638.76 = 12,130.56/x
  3. Step 3: Cross multiply
    22,201.92x = 30,638.76 × 12,130.56
  4. Step 4: Simplify right side
    22,201.92x = 371,665,316.51
  5. Step 5: Solve for x
    x = 371,665,316.51/22,201.92
  6. Step 6: Final answer
    x = 16,740.23

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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.