Home / 39,168.90-58,760.79-12,881.22

Finding the Fourth Proportional to 39,168.90, 58,760.79 and 12,881.22

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Solution

The fourth proportional to 39,168.90, 58,760.79 and 12,881.22 is: 19,324.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,168.90 : 58,760.79 = 12,881.22 : x
  2. Step 2: Convert to fraction form
    39,168.90/58,760.79 = 12,881.22/x
  3. Step 3: Cross multiply
    39,168.90x = 58,760.79 × 12,881.22
  4. Step 4: Simplify right side
    39,168.90x = 756,910,663.36
  5. Step 5: Solve for x
    x = 756,910,663.36/39,168.90
  6. Step 6: Final answer
    x = 19,324.28

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1.5x scale

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.