Home / 27,791.50-38,352.63-15,215.98

Finding the Fourth Proportional to 27,791.50, 38,352.63 and 15,215.98

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Solution

The fourth proportional to 27,791.50, 38,352.63 and 15,215.98 is: 20,998.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,791.50 : 38,352.63 = 15,215.98 : x
  2. Step 2: Convert to fraction form
    27,791.50/38,352.63 = 15,215.98/x
  3. Step 3: Cross multiply
    27,791.50x = 38,352.63 × 15,215.98
  4. Step 4: Simplify right side
    27,791.50x = 583,572,851.03
  5. Step 5: Solve for x
    x = 583,572,851.03/27,791.50
  6. Step 6: Final answer
    x = 20,998.25

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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.