Home / 27,805.50-38,372.22-15,868.60

Finding the Fourth Proportional to 27,805.50, 38,372.22 and 15,868.60

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Solution

The fourth proportional to 27,805.50, 38,372.22 and 15,868.60 is: 21,899.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,805.50 : 38,372.22 = 15,868.60 : x
  2. Step 2: Convert to fraction form
    27,805.50/38,372.22 = 15,868.60/x
  3. Step 3: Cross multiply
    27,805.50x = 38,372.22 × 15,868.60
  4. Step 4: Simplify right side
    27,805.50x = 608,913,410.29
  5. Step 5: Solve for x
    x = 608,913,410.29/27,805.50
  6. Step 6: Final answer
    x = 21,899.03

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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.