Home / 39,849.14-54,987.58-21,943.08

Finding the Fourth Proportional to 39,849.14, 54,987.58 and 21,943.08

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Solution

The fourth proportional to 39,849.14, 54,987.58 and 21,943.08 is: 30,279.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,849.14 : 54,987.58 = 21,943.08 : x
  2. Step 2: Convert to fraction form
    39,849.14/54,987.58 = 21,943.08/x
  3. Step 3: Cross multiply
    39,849.14x = 54,987.58 × 21,943.08
  4. Step 4: Simplify right side
    39,849.14x = 1,206,596,866.95
  5. Step 5: Solve for x
    x = 1,206,596,866.95/39,849.14
  6. Step 6: Final answer
    x = 30,279.12

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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.