Home / 26,939.60-40,390.20-10,293.20

Finding the Fourth Proportional to 26,939.60, 40,390.20 and 10,293.20

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Solution

The fourth proportional to 26,939.60, 40,390.20 and 10,293.20 is: 15,432.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,939.60 : 40,390.20 = 10,293.20 : x
  2. Step 2: Convert to fraction form
    26,939.60/40,390.20 = 10,293.20/x
  3. Step 3: Cross multiply
    26,939.60x = 40,390.20 × 10,293.20
  4. Step 4: Simplify right side
    26,939.60x = 415,744,406.64
  5. Step 5: Solve for x
    x = 415,744,406.64/26,939.60
  6. Step 6: Final answer
    x = 15,432.46

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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.