Home / 37,990.66-52,426.76-20,996.04

Finding the Fourth Proportional to 37,990.66, 52,426.76 and 20,996.04

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Solution

The fourth proportional to 37,990.66, 52,426.76 and 20,996.04 is: 28,974.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,990.66 : 52,426.76 = 20,996.04 : x
  2. Step 2: Convert to fraction form
    37,990.66/52,426.76 = 20,996.04/x
  3. Step 3: Cross multiply
    37,990.66x = 52,426.76 × 20,996.04
  4. Step 4: Simplify right side
    37,990.66x = 1,100,754,350.03
  5. Step 5: Solve for x
    x = 1,100,754,350.03/37,990.66
  6. Step 6: Final answer
    x = 28,974.34

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Double scale
Find fourth proportional to 37,991.66, 52,428.14 and 20,997.04
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.