Home / 39,204.57-54,102-21,299.52

Finding the Fourth Proportional to 39,204.57, 54,102 and 21,299.52

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Solution

The fourth proportional to 39,204.57, 54,102 and 21,299.52 is: 29,393.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,204.57 : 54,102 = 21,299.52 : x
  2. Step 2: Convert to fraction form
    39,204.57/54,102 = 21,299.52/x
  3. Step 3: Cross multiply
    39,204.57x = 54,102 × 21,299.52
  4. Step 4: Simplify right side
    39,204.57x = 1,152,346,631.04
  5. Step 5: Solve for x
    x = 1,152,346,631.04/39,204.57
  6. Step 6: Final answer
    x = 29,393.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.