Home / 27,143.80-40,700.94-8,418.76

Finding the Fourth Proportional to 27,143.80, 40,700.94 and 8,418.76

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Solution

The fourth proportional to 27,143.80, 40,700.94 and 8,418.76 is: 12,623.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,143.80 : 40,700.94 = 8,418.76 : x
  2. Step 2: Convert to fraction form
    27,143.80/40,700.94 = 8,418.76/x
  3. Step 3: Cross multiply
    27,143.80x = 40,700.94 × 8,418.76
  4. Step 4: Simplify right side
    27,143.80x = 342,651,445.63
  5. Step 5: Solve for x
    x = 342,651,445.63/27,143.80
  6. Step 6: Final answer
    x = 12,623.56

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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.