Home / 22,205.72-30,645.06-12,775.70

Finding the Fourth Proportional to 22,205.72, 30,645.06 and 12,775.70

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Solution

The fourth proportional to 22,205.72, 30,645.06 and 12,775.70 is: 17,631.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,205.72 : 30,645.06 = 12,775.70 : x
  2. Step 2: Convert to fraction form
    22,205.72/30,645.06 = 12,775.70/x
  3. Step 3: Cross multiply
    22,205.72x = 30,645.06 × 12,775.70
  4. Step 4: Simplify right side
    22,205.72x = 391,512,093.04
  5. Step 5: Solve for x
    x = 391,512,093.04/22,205.72
  6. Step 6: Final answer
    x = 17,631.14

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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.