Home / 39,531.40-54,552.89-21,626.19

Finding the Fourth Proportional to 39,531.40, 54,552.89 and 21,626.19

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Solution

The fourth proportional to 39,531.40, 54,552.89 and 21,626.19 is: 29,843.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,531.40 : 54,552.89 = 21,626.19 : x
  2. Step 2: Convert to fraction form
    39,531.40/54,552.89 = 21,626.19/x
  3. Step 3: Cross multiply
    39,531.40x = 54,552.89 × 21,626.19
  4. Step 4: Simplify right side
    39,531.40x = 1,179,771,218.25
  5. Step 5: Solve for x
    x = 1,179,771,218.25/39,531.40
  6. Step 6: Final answer
    x = 29,843.90

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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.