Home / 39,400.98-54,372.87-21,496.14

Finding the Fourth Proportional to 39,400.98, 54,372.87 and 21,496.14

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Solution

The fourth proportional to 39,400.98, 54,372.87 and 21,496.14 is: 29,664.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,400.98 : 54,372.87 = 21,496.14 : x
  2. Step 2: Convert to fraction form
    39,400.98/54,372.87 = 21,496.14/x
  3. Step 3: Cross multiply
    39,400.98x = 54,372.87 × 21,496.14
  4. Step 4: Simplify right side
    39,400.98x = 1,168,806,825.72
  5. Step 5: Solve for x
    x = 1,168,806,825.72/39,400.98
  6. Step 6: Final answer
    x = 29,664.41

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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.