Home / 22,206.98-30,645.12-12,135.46

Finding the Fourth Proportional to 22,206.98, 30,645.12 and 12,135.46

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Solution

The fourth proportional to 22,206.98, 30,645.12 and 12,135.46 is: 16,746.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,206.98 : 30,645.12 = 12,135.46 : x
  2. Step 2: Convert to fraction form
    22,206.98/30,645.12 = 12,135.46/x
  3. Step 3: Cross multiply
    22,206.98x = 30,645.12 × 12,135.46
  4. Step 4: Simplify right side
    22,206.98x = 371,892,627.96
  5. Step 5: Solve for x
    x = 371,892,627.96/22,206.98
  6. Step 6: Final answer
    x = 16,746.65

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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.