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Finding the Fourth Proportional to 26,900.88, 40,357.80 and 8,432.88

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Solution

The fourth proportional to 26,900.88, 40,357.80 and 8,432.88 is: 12,651.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,900.88 : 40,357.80 = 8,432.88 : x
  2. Step 2: Convert to fraction form
    26,900.88/40,357.80 = 8,432.88/x
  3. Step 3: Cross multiply
    26,900.88x = 40,357.80 × 8,432.88
  4. Step 4: Simplify right side
    26,900.88x = 340,332,484.46
  5. Step 5: Solve for x
    x = 340,332,484.46/26,900.88
  6. Step 6: Final answer
    x = 12,651.35

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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.