Home / 27,126.24-40,690.71-8,419.02

Finding the Fourth Proportional to 27,126.24, 40,690.71 and 8,419.02

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Solution

The fourth proportional to 27,126.24, 40,690.71 and 8,419.02 is: 12,628.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,126.24 : 40,690.71 = 8,419.02 : x
  2. Step 2: Convert to fraction form
    27,126.24/40,690.71 = 8,419.02/x
  3. Step 3: Cross multiply
    27,126.24x = 40,690.71 × 8,419.02
  4. Step 4: Simplify right side
    27,126.24x = 342,575,901.30
  5. Step 5: Solve for x
    x = 342,575,901.30/27,126.24
  6. Step 6: Final answer
    x = 12,628.95

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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.