Home / 39,055.80-58,577.76-12,760.50

Finding the Fourth Proportional to 39,055.80, 58,577.76 and 12,760.50

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Solution

The fourth proportional to 39,055.80, 58,577.76 and 12,760.50 is: 19,138.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,055.80 : 58,577.76 = 12,760.50 : x
  2. Step 2: Convert to fraction form
    39,055.80/58,577.76 = 12,760.50/x
  3. Step 3: Cross multiply
    39,055.80x = 58,577.76 × 12,760.50
  4. Step 4: Simplify right side
    39,055.80x = 747,481,506.48
  5. Step 5: Solve for x
    x = 747,481,506.48/39,055.80
  6. Step 6: Final answer
    x = 19,138.81

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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.