Home / 39,424.19-54,404.60-21,519.32

Finding the Fourth Proportional to 39,424.19, 54,404.60 and 21,519.32

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Solution

The fourth proportional to 39,424.19, 54,404.60 and 21,519.32 is: 29,696.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,424.19 : 54,404.60 = 21,519.32 : x
  2. Step 2: Convert to fraction form
    39,424.19/54,404.60 = 21,519.32/x
  3. Step 3: Cross multiply
    39,424.19x = 54,404.60 × 21,519.32
  4. Step 4: Simplify right side
    39,424.19x = 1,170,749,617.25
  5. Step 5: Solve for x
    x = 1,170,749,617.25/39,424.19
  6. Step 6: Final answer
    x = 29,696.23

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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.