Home / 36,947.81-55,429.49-11,985.90

Finding the Fourth Proportional to 36,947.81, 55,429.49 and 11,985.90

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Solution

The fourth proportional to 36,947.81, 55,429.49 and 11,985.90 is: 17,981.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,947.81 : 55,429.49 = 11,985.90 : x
  2. Step 2: Convert to fraction form
    36,947.81/55,429.49 = 11,985.90/x
  3. Step 3: Cross multiply
    36,947.81x = 55,429.49 × 11,985.90
  4. Step 4: Simplify right side
    36,947.81x = 664,372,264.26
  5. Step 5: Solve for x
    x = 664,372,264.26/36,947.81
  6. Step 6: Final answer
    x = 17,981.37

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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.