Home / 26,020.66-38,990.10-20,112.01

Finding the Fourth Proportional to 26,020.66, 38,990.10 and 20,112.01

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Solution

The fourth proportional to 26,020.66, 38,990.10 and 20,112.01 is: 30,136.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,020.66 : 38,990.10 = 20,112.01 : x
  2. Step 2: Convert to fraction form
    26,020.66/38,990.10 = 20,112.01/x
  3. Step 3: Cross multiply
    26,020.66x = 38,990.10 × 20,112.01
  4. Step 4: Simplify right side
    26,020.66x = 784,169,183.63
  5. Step 5: Solve for x
    x = 784,169,183.63/26,020.66
  6. Step 6: Final answer
    x = 30,136.41

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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.