Home / 27,141.98-40,718.82-8,421.62

Finding the Fourth Proportional to 27,141.98, 40,718.82 and 8,421.62

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Solution

The fourth proportional to 27,141.98, 40,718.82 and 8,421.62 is: 12,634.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,141.98 : 40,718.82 = 8,421.62 : x
  2. Step 2: Convert to fraction form
    27,141.98/40,718.82 = 8,421.62/x
  3. Step 3: Cross multiply
    27,141.98x = 40,718.82 × 8,421.62
  4. Step 4: Simplify right side
    27,141.98x = 342,918,428.89
  5. Step 5: Solve for x
    x = 342,918,428.89/27,141.98
  6. Step 6: Final answer
    x = 12,634.25

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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.