Home / 27,843.10-38,386.31-22,119.55

Finding the Fourth Proportional to 27,843.10, 38,386.31 and 22,119.55

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Solution

The fourth proportional to 27,843.10, 38,386.31 and 22,119.55 is: 30,495.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,843.10 : 38,386.31 = 22,119.55 : x
  2. Step 2: Convert to fraction form
    27,843.10/38,386.31 = 22,119.55/x
  3. Step 3: Cross multiply
    27,843.10x = 38,386.31 × 22,119.55
  4. Step 4: Simplify right side
    27,843.10x = 849,087,696.80
  5. Step 5: Solve for x
    x = 849,087,696.80/27,843.10
  6. Step 6: Final answer
    x = 30,495.45

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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.