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Finding the Fourth Proportional to 26,978.06, 40,467.47 and 10,338.95

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Solution

The fourth proportional to 26,978.06, 40,467.47 and 10,338.95 is: 15,508.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,978.06 : 40,467.47 = 10,338.95 : x
  2. Step 2: Convert to fraction form
    26,978.06/40,467.47 = 10,338.95/x
  3. Step 3: Cross multiply
    26,978.06x = 40,467.47 × 10,338.95
  4. Step 4: Simplify right side
    26,978.06x = 418,390,894.92
  5. Step 5: Solve for x
    x = 418,390,894.92/26,978.06
  6. Step 6: Final answer
    x = 15,508.56

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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.