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Finding the Fourth Proportional to 27,257.57, 40,886.35 and 8,789.57

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Solution

The fourth proportional to 27,257.57, 40,886.35 and 8,789.57 is: 13,184.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,257.57 : 40,886.35 = 8,789.57 : x
  2. Step 2: Convert to fraction form
    27,257.57/40,886.35 = 8,789.57/x
  3. Step 3: Cross multiply
    27,257.57x = 40,886.35 × 8,789.57
  4. Step 4: Simplify right side
    27,257.57x = 359,373,186.99
  5. Step 5: Solve for x
    x = 359,373,186.99/27,257.57
  6. Step 6: Final answer
    x = 13,184.35

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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.