Home / 39,958.90-59,919.19-18,881.39

Finding the Fourth Proportional to 39,958.90, 59,919.19 and 18,881.39

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Solution

The fourth proportional to 39,958.90, 59,919.19 and 18,881.39 is: 28,313.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,958.90 : 59,919.19 = 18,881.39 : x
  2. Step 2: Convert to fraction form
    39,958.90/59,919.19 = 18,881.39/x
  3. Step 3: Cross multiply
    39,958.90x = 59,919.19 × 18,881.39
  4. Step 4: Simplify right side
    39,958.90x = 1,131,357,594.87
  5. Step 5: Solve for x
    x = 1,131,357,594.87/39,958.90
  6. Step 6: Final answer
    x = 28,313.03

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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.