Home / 27,139.77-37,452.21-15,203.03

Finding the Fourth Proportional to 27,139.77, 37,452.21 and 15,203.03

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Solution

The fourth proportional to 27,139.77, 37,452.21 and 15,203.03 is: 20,979.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,139.77 : 37,452.21 = 15,203.03 : x
  2. Step 2: Convert to fraction form
    27,139.77/37,452.21 = 15,203.03/x
  3. Step 3: Cross multiply
    27,139.77x = 37,452.21 × 15,203.03
  4. Step 4: Simplify right side
    27,139.77x = 569,387,016.57
  5. Step 5: Solve for x
    x = 569,387,016.57/27,139.77
  6. Step 6: Final answer
    x = 20,979.80

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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.