Home / 39,164.80-58,747.32-12,871.60

Finding the Fourth Proportional to 39,164.80, 58,747.32 and 12,871.60

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Solution

The fourth proportional to 39,164.80, 58,747.32 and 12,871.60 is: 19,307.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,164.80 : 58,747.32 = 12,871.60 : x
  2. Step 2: Convert to fraction form
    39,164.80/58,747.32 = 12,871.60/x
  3. Step 3: Cross multiply
    39,164.80x = 58,747.32 × 12,871.60
  4. Step 4: Simplify right side
    39,164.80x = 756,172,004.11
  5. Step 5: Solve for x
    x = 756,172,004.11/39,164.80
  6. Step 6: Final answer
    x = 19,307.44

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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.