Home / 27,850.36-38,434.26-15,915.64

Finding the Fourth Proportional to 27,850.36, 38,434.26 and 15,915.64

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Solution

The fourth proportional to 27,850.36, 38,434.26 and 15,915.64 is: 21,964.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,850.36 : 38,434.26 = 15,915.64 : x
  2. Step 2: Convert to fraction form
    27,850.36/38,434.26 = 15,915.64/x
  3. Step 3: Cross multiply
    27,850.36x = 38,434.26 × 15,915.64
  4. Step 4: Simplify right side
    27,850.36x = 611,705,845.83
  5. Step 5: Solve for x
    x = 611,705,845.83/27,850.36
  6. Step 6: Final answer
    x = 21,964.02

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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.