Home / 39,556.98-54,588.68-21,653.12

Finding the Fourth Proportional to 39,556.98, 54,588.68 and 21,653.12

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Solution

The fourth proportional to 39,556.98, 54,588.68 and 21,653.12 is: 29,881.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,556.98 : 54,588.68 = 21,653.12 : x
  2. Step 2: Convert to fraction form
    39,556.98/54,588.68 = 21,653.12/x
  3. Step 3: Cross multiply
    39,556.98x = 54,588.68 × 21,653.12
  4. Step 4: Simplify right side
    39,556.98x = 1,182,015,238.68
  5. Step 5: Solve for x
    x = 1,182,015,238.68/39,556.98
  6. Step 6: Final answer
    x = 29,881.33

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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.