Home / 27,665.56-38,177.94-15,090.40

Finding the Fourth Proportional to 27,665.56, 38,177.94 and 15,090.40

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Solution

The fourth proportional to 27,665.56, 38,177.94 and 15,090.40 is: 20,824.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,665.56 : 38,177.94 = 15,090.40 : x
  2. Step 2: Convert to fraction form
    27,665.56/38,177.94 = 15,090.40/x
  3. Step 3: Cross multiply
    27,665.56x = 38,177.94 × 15,090.40
  4. Step 4: Simplify right side
    27,665.56x = 576,120,385.78
  5. Step 5: Solve for x
    x = 576,120,385.78/27,665.56
  6. Step 6: Final answer
    x = 20,824.46

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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.