Home / 27,139.72-37,452.36-15,203.02

Finding the Fourth Proportional to 27,139.72, 37,452.36 and 15,203.02

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Solution

The fourth proportional to 27,139.72, 37,452.36 and 15,203.02 is: 20,979.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,139.72 : 37,452.36 = 15,203.02 : x
  2. Step 2: Convert to fraction form
    27,139.72/37,452.36 = 15,203.02/x
  3. Step 3: Cross multiply
    27,139.72x = 37,452.36 × 15,203.02
  4. Step 4: Simplify right side
    27,139.72x = 569,388,978.13
  5. Step 5: Solve for x
    x = 569,388,978.13/27,139.72
  6. Step 6: Final answer
    x = 20,979.91

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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.