Home / 27,065.75-40,604.77-12,278.89

Finding the Fourth Proportional to 27,065.75, 40,604.77 and 12,278.89

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Solution

The fourth proportional to 27,065.75, 40,604.77 and 12,278.89 is: 18,421.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,065.75 : 40,604.77 = 12,278.89 : x
  2. Step 2: Convert to fraction form
    27,065.75/40,604.77 = 12,278.89/x
  3. Step 3: Cross multiply
    27,065.75x = 40,604.77 × 12,278.89
  4. Step 4: Simplify right side
    27,065.75x = 498,581,535.88
  5. Step 5: Solve for x
    x = 498,581,535.88/27,065.75
  6. Step 6: Final answer
    x = 18,421.13

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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.