Home / 22,201.88-30,638.98-12,130.74

Finding the Fourth Proportional to 22,201.88, 30,638.98 and 12,130.74

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Solution

The fourth proportional to 22,201.88, 30,638.98 and 12,130.74 is: 16,740.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,201.88 : 30,638.98 = 12,130.74 : x
  2. Step 2: Convert to fraction form
    22,201.88/30,638.98 = 12,130.74/x
  3. Step 3: Cross multiply
    22,201.88x = 30,638.98 × 12,130.74
  4. Step 4: Simplify right side
    22,201.88x = 371,673,500.25
  5. Step 5: Solve for x
    x = 371,673,500.25/22,201.88
  6. Step 6: Final answer
    x = 16,740.63

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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.