Home / 27,655.36-38,164.62-15,080.20

Finding the Fourth Proportional to 27,655.36, 38,164.62 and 15,080.20

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Solution

The fourth proportional to 27,655.36, 38,164.62 and 15,080.20 is: 20,810.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,655.36 : 38,164.62 = 15,080.20 : x
  2. Step 2: Convert to fraction form
    27,655.36/38,164.62 = 15,080.20/x
  3. Step 3: Cross multiply
    27,655.36x = 38,164.62 × 15,080.20
  4. Step 4: Simplify right side
    27,655.36x = 575,530,102.52
  5. Step 5: Solve for x
    x = 575,530,102.52/27,655.36
  6. Step 6: Final answer
    x = 20,810.80

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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.