Home / 22,187.66-30,620.22-12,117.04

Finding the Fourth Proportional to 22,187.66, 30,620.22 and 12,117.04

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Solution

The fourth proportional to 22,187.66, 30,620.22 and 12,117.04 is: 16,722.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,187.66 : 30,620.22 = 12,117.04 : x
  2. Step 2: Convert to fraction form
    22,187.66/30,620.22 = 12,117.04/x
  3. Step 3: Cross multiply
    22,187.66x = 30,620.22 × 12,117.04
  4. Step 4: Simplify right side
    22,187.66x = 371,026,430.55
  5. Step 5: Solve for x
    x = 371,026,430.55/22,187.66
  6. Step 6: Final answer
    x = 16,722.20

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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.