Home / 39,287.06-54,215.97-21,382.08

Finding the Fourth Proportional to 39,287.06, 54,215.97 and 21,382.08

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Solution

The fourth proportional to 39,287.06, 54,215.97 and 21,382.08 is: 29,507.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,287.06 : 54,215.97 = 21,382.08 : x
  2. Step 2: Convert to fraction form
    39,287.06/54,215.97 = 21,382.08/x
  3. Step 3: Cross multiply
    39,287.06x = 54,215.97 × 21,382.08
  4. Step 4: Simplify right side
    39,287.06x = 1,159,249,924.32
  5. Step 5: Solve for x
    x = 1,159,249,924.32/39,287.06
  6. Step 6: Final answer
    x = 29,507.17

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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.