Home / 26,478.20-39,733.70-15,390.11

Finding the Fourth Proportional to 26,478.20, 39,733.70 and 15,390.11

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Solution

The fourth proportional to 26,478.20, 39,733.70 and 15,390.11 is: 23,094.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,478.20 : 39,733.70 = 15,390.11 : x
  2. Step 2: Convert to fraction form
    26,478.20/39,733.70 = 15,390.11/x
  3. Step 3: Cross multiply
    26,478.20x = 39,733.70 × 15,390.11
  4. Step 4: Simplify right side
    26,478.20x = 611,505,738.09
  5. Step 5: Solve for x
    x = 611,505,738.09/26,478.20
  6. Step 6: Final answer
    x = 23,094.69

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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.