Home / 27,268.36-37,630.40-15,331.80

Finding the Fourth Proportional to 27,268.36, 37,630.40 and 15,331.80

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Solution

The fourth proportional to 27,268.36, 37,630.40 and 15,331.80 is: 21,157.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,268.36 : 37,630.40 = 15,331.80 : x
  2. Step 2: Convert to fraction form
    27,268.36/37,630.40 = 15,331.80/x
  3. Step 3: Cross multiply
    27,268.36x = 37,630.40 × 15,331.80
  4. Step 4: Simplify right side
    27,268.36x = 576,941,766.72
  5. Step 5: Solve for x
    x = 576,941,766.72/27,268.36
  6. Step 6: Final answer
    x = 21,157.92

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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.