Home / 38,436.81-57,620.94-20,677.02

Finding the Fourth Proportional to 38,436.81, 57,620.94 and 20,677.02

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Solution

The fourth proportional to 38,436.81, 57,620.94 and 20,677.02 is: 30,997.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,436.81 : 57,620.94 = 20,677.02 : x
  2. Step 2: Convert to fraction form
    38,436.81/57,620.94 = 20,677.02/x
  3. Step 3: Cross multiply
    38,436.81x = 57,620.94 × 20,677.02
  4. Step 4: Simplify right side
    38,436.81x = 1,191,429,328.80
  5. Step 5: Solve for x
    x = 1,191,429,328.80/38,436.81
  6. Step 6: Final answer
    x = 30,997.09

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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.