Home / 37,989.20-52,428.16-20,994.94

Finding the Fourth Proportional to 37,989.20, 52,428.16 and 20,994.94

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Solution

The fourth proportional to 37,989.20, 52,428.16 and 20,994.94 is: 28,974.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,989.20 : 52,428.16 = 20,994.94 : x
  2. Step 2: Convert to fraction form
    37,989.20/52,428.16 = 20,994.94/x
  3. Step 3: Cross multiply
    37,989.20x = 52,428.16 × 20,994.94
  4. Step 4: Simplify right side
    37,989.20x = 1,100,726,073.51
  5. Step 5: Solve for x
    x = 1,100,726,073.51/37,989.20
  6. Step 6: Final answer
    x = 28,974.71

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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.