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Finding the Fourth Proportional to 27,967, 38,594.60 and 15,391.96

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Solution

The fourth proportional to 27,967, 38,594.60 and 15,391.96 is: 21,240.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,967 : 38,594.60 = 15,391.96 : x
  2. Step 2: Convert to fraction form
    27,967/38,594.60 = 15,391.96/x
  3. Step 3: Cross multiply
    27,967x = 38,594.60 × 15,391.96
  4. Step 4: Simplify right side
    27,967x = 594,046,539.42
  5. Step 5: Solve for x
    x = 594,046,539.42/27,967
  6. Step 6: Final answer
    x = 21,240.98

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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.