Home / 39,321.39-54,264.48-21,417.36

Finding the Fourth Proportional to 39,321.39, 54,264.48 and 21,417.36

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Solution

The fourth proportional to 39,321.39, 54,264.48 and 21,417.36 is: 29,556.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,321.39 : 54,264.48 = 21,417.36 : x
  2. Step 2: Convert to fraction form
    39,321.39/54,264.48 = 21,417.36/x
  3. Step 3: Cross multiply
    39,321.39x = 54,264.48 × 21,417.36
  4. Step 4: Simplify right side
    39,321.39x = 1,162,201,903.37
  5. Step 5: Solve for x
    x = 1,162,201,903.37/39,321.39
  6. Step 6: Final answer
    x = 29,556.48

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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.