Home / 22,595.74-31,181.48-13,639.97

Finding the Fourth Proportional to 22,595.74, 31,181.48 and 13,639.97

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Solution

The fourth proportional to 22,595.74, 31,181.48 and 13,639.97 is: 18,822.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,595.74 : 31,181.48 = 13,639.97 : x
  2. Step 2: Convert to fraction form
    22,595.74/31,181.48 = 13,639.97/x
  3. Step 3: Cross multiply
    22,595.74x = 31,181.48 × 13,639.97
  4. Step 4: Simplify right side
    22,595.74x = 425,314,451.76
  5. Step 5: Solve for x
    x = 425,314,451.76/22,595.74
  6. Step 6: Final answer
    x = 18,822.78

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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.