Home / 39,177.60-58,775.04-12,881.28

Finding the Fourth Proportional to 39,177.60, 58,775.04 and 12,881.28

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Solution

The fourth proportional to 39,177.60, 58,775.04 and 12,881.28 is: 19,324.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,177.60 : 58,775.04 = 12,881.28 : x
  2. Step 2: Convert to fraction form
    39,177.60/58,775.04 = 12,881.28/x
  3. Step 3: Cross multiply
    39,177.60x = 58,775.04 × 12,881.28
  4. Step 4: Simplify right side
    39,177.60x = 757,097,747.25
  5. Step 5: Solve for x
    x = 757,097,747.25/39,177.60
  6. Step 6: Final answer
    x = 19,324.76

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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.