Home / 27,847.50-38,431.98-15,274.68

Finding the Fourth Proportional to 27,847.50, 38,431.98 and 15,274.68

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Solution

The fourth proportional to 27,847.50, 38,431.98 and 15,274.68 is: 21,080.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,847.50 : 38,431.98 = 15,274.68 : x
  2. Step 2: Convert to fraction form
    27,847.50/38,431.98 = 15,274.68/x
  3. Step 3: Cross multiply
    27,847.50x = 38,431.98 × 15,274.68
  4. Step 4: Simplify right side
    27,847.50x = 587,036,196.27
  5. Step 5: Solve for x
    x = 587,036,196.27/27,847.50
  6. Step 6: Final answer
    x = 21,080.39

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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.