Home / 19,579.04-27,020.16-11,081.60

Finding the Fourth Proportional to 19,579.04, 27,020.16 and 11,081.60

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Solution

The fourth proportional to 19,579.04, 27,020.16 and 11,081.60 is: 15,293.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,579.04 : 27,020.16 = 11,081.60 : x
  2. Step 2: Convert to fraction form
    19,579.04/27,020.16 = 11,081.60/x
  3. Step 3: Cross multiply
    19,579.04x = 27,020.16 × 11,081.60
  4. Step 4: Simplify right side
    19,579.04x = 299,426,605.06
  5. Step 5: Solve for x
    x = 299,426,605.06/19,579.04
  6. Step 6: Final answer
    x = 15,293.22

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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.