Home / 27,645.90-38,147.50-16,315.87

Finding the Fourth Proportional to 27,645.90, 38,147.50 and 16,315.87

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Solution

The fourth proportional to 27,645.90, 38,147.50 and 16,315.87 is: 22,513.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,645.90 : 38,147.50 = 16,315.87 : x
  2. Step 2: Convert to fraction form
    27,645.90/38,147.50 = 16,315.87/x
  3. Step 3: Cross multiply
    27,645.90x = 38,147.50 × 16,315.87
  4. Step 4: Simplify right side
    27,645.90x = 622,409,610.04
  5. Step 5: Solve for x
    x = 622,409,610.04/27,645.90
  6. Step 6: Final answer
    x = 22,513.63

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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.