Home / 22,949.12-31,669.49-12,877.76

Finding the Fourth Proportional to 22,949.12, 31,669.49 and 12,877.76

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Solution

The fourth proportional to 22,949.12, 31,669.49 and 12,877.76 is: 17,771.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,949.12 : 31,669.49 = 12,877.76 : x
  2. Step 2: Convert to fraction form
    22,949.12/31,669.49 = 12,877.76/x
  3. Step 3: Cross multiply
    22,949.12x = 31,669.49 × 12,877.76
  4. Step 4: Simplify right side
    22,949.12x = 407,832,202.91
  5. Step 5: Solve for x
    x = 407,832,202.91/22,949.12
  6. Step 6: Final answer
    x = 17,771.15

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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.