Home / 27,216.80-37,559.12-15,885.44

Finding the Fourth Proportional to 27,216.80, 37,559.12 and 15,885.44

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Solution

The fourth proportional to 27,216.80, 37,559.12 and 15,885.44 is: 21,921.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,216.80 : 37,559.12 = 15,885.44 : x
  2. Step 2: Convert to fraction form
    27,216.80/37,559.12 = 15,885.44/x
  3. Step 3: Cross multiply
    27,216.80x = 37,559.12 × 15,885.44
  4. Step 4: Simplify right side
    27,216.80x = 596,643,147.21
  5. Step 5: Solve for x
    x = 596,643,147.21/27,216.80
  6. Step 6: Final answer
    x = 21,921.87

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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.