Home / 39,301.48-54,237.17-21,396.78

Finding the Fourth Proportional to 39,301.48, 54,237.17 and 21,396.78

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Solution

The fourth proportional to 39,301.48, 54,237.17 and 21,396.78 is: 29,528.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,301.48 : 54,237.17 = 21,396.78 : x
  2. Step 2: Convert to fraction form
    39,301.48/54,237.17 = 21,396.78/x
  3. Step 3: Cross multiply
    39,301.48x = 54,237.17 × 21,396.78
  4. Step 4: Simplify right side
    39,301.48x = 1,160,500,794.31
  5. Step 5: Solve for x
    x = 1,160,500,794.31/39,301.48
  6. Step 6: Final answer
    x = 29,528.17

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1.5x scale

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.