Home / 27,205.73-40,821.15-12,419.18

Finding the Fourth Proportional to 27,205.73, 40,821.15 and 12,419.18

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Solution

The fourth proportional to 27,205.73, 40,821.15 and 12,419.18 is: 18,634.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,205.73 : 40,821.15 = 12,419.18 : x
  2. Step 2: Convert to fraction form
    27,205.73/40,821.15 = 12,419.18/x
  3. Step 3: Cross multiply
    27,205.73x = 40,821.15 × 12,419.18
  4. Step 4: Simplify right side
    27,205.73x = 506,965,209.66
  5. Step 5: Solve for x
    x = 506,965,209.66/27,205.73
  6. Step 6: Final answer
    x = 18,634.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.