Home / 39,767.34-54,878.91-21,863.50

Finding the Fourth Proportional to 39,767.34, 54,878.91 and 21,863.50

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Solution

The fourth proportional to 39,767.34, 54,878.91 and 21,863.50 is: 30,171.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,767.34 : 54,878.91 = 21,863.50 : x
  2. Step 2: Convert to fraction form
    39,767.34/54,878.91 = 21,863.50/x
  3. Step 3: Cross multiply
    39,767.34x = 54,878.91 × 21,863.50
  4. Step 4: Simplify right side
    39,767.34x = 1,199,845,048.79
  5. Step 5: Solve for x
    x = 1,199,845,048.79/39,767.34
  6. Step 6: Final answer
    x = 30,171.62

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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.