Home / 27,145.65-40,716.51-8,425.20

Finding the Fourth Proportional to 27,145.65, 40,716.51 and 8,425.20

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Solution

The fourth proportional to 27,145.65, 40,716.51 and 8,425.20 is: 12,637.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,145.65 : 40,716.51 = 8,425.20 : x
  2. Step 2: Convert to fraction form
    27,145.65/40,716.51 = 8,425.20/x
  3. Step 3: Cross multiply
    27,145.65x = 40,716.51 × 8,425.20
  4. Step 4: Simplify right side
    27,145.65x = 343,044,740.05
  5. Step 5: Solve for x
    x = 343,044,740.05/27,145.65
  6. Step 6: Final answer
    x = 12,637.19

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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.