Home / 26,685.86-40,015.20-8,910.14

Finding the Fourth Proportional to 26,685.86, 40,015.20 and 8,910.14

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Solution

The fourth proportional to 26,685.86, 40,015.20 and 8,910.14 is: 13,360.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,685.86 : 40,015.20 = 8,910.14 : x
  2. Step 2: Convert to fraction form
    26,685.86/40,015.20 = 8,910.14/x
  3. Step 3: Cross multiply
    26,685.86x = 40,015.20 × 8,910.14
  4. Step 4: Simplify right side
    26,685.86x = 356,541,034.13
  5. Step 5: Solve for x
    x = 356,541,034.13/26,685.86
  6. Step 6: Final answer
    x = 13,360.67

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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.