Home / 36,947.79-55,429.47-11,985.89

Finding the Fourth Proportional to 36,947.79, 55,429.47 and 11,985.89

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Solution

The fourth proportional to 36,947.79, 55,429.47 and 11,985.89 is: 17,981.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,947.79 : 55,429.47 = 11,985.89 : x
  2. Step 2: Convert to fraction form
    36,947.79/55,429.47 = 11,985.89/x
  3. Step 3: Cross multiply
    36,947.79x = 55,429.47 × 11,985.89
  4. Step 4: Simplify right side
    36,947.79x = 664,371,193.10
  5. Step 5: Solve for x
    x = 664,371,193.10/36,947.79
  6. Step 6: Final answer
    x = 17,981.35

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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.