Home / 39,158.60-58,744.04-12,857.36

Finding the Fourth Proportional to 39,158.60, 58,744.04 and 12,857.36

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Solution

The fourth proportional to 39,158.60, 58,744.04 and 12,857.36 is: 19,288.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,158.60 : 58,744.04 = 12,857.36 : x
  2. Step 2: Convert to fraction form
    39,158.60/58,744.04 = 12,857.36/x
  3. Step 3: Cross multiply
    39,158.60x = 58,744.04 × 12,857.36
  4. Step 4: Simplify right side
    39,158.60x = 755,293,270.13
  5. Step 5: Solve for x
    x = 755,293,270.13/39,158.60
  6. Step 6: Final answer
    x = 19,288.06

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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.