Home / 26,231.28-39,315.06-12,172.20

Finding the Fourth Proportional to 26,231.28, 39,315.06 and 12,172.20

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Solution

The fourth proportional to 26,231.28, 39,315.06 and 12,172.20 is: 18,243.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,231.28 : 39,315.06 = 12,172.20 : x
  2. Step 2: Convert to fraction form
    26,231.28/39,315.06 = 12,172.20/x
  3. Step 3: Cross multiply
    26,231.28x = 39,315.06 × 12,172.20
  4. Step 4: Simplify right side
    26,231.28x = 478,550,773.33
  5. Step 5: Solve for x
    x = 478,550,773.33/26,231.28
  6. Step 6: Final answer
    x = 18,243.52

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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.