Home / 27,121.95-37,427.19-15,791.77

Finding the Fourth Proportional to 27,121.95, 37,427.19 and 15,791.77

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Solution

The fourth proportional to 27,121.95, 37,427.19 and 15,791.77 is: 21,792.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,121.95 : 37,427.19 = 15,791.77 : x
  2. Step 2: Convert to fraction form
    27,121.95/37,427.19 = 15,791.77/x
  3. Step 3: Cross multiply
    27,121.95x = 37,427.19 × 15,791.77
  4. Step 4: Simplify right side
    27,121.95x = 591,041,576.23
  5. Step 5: Solve for x
    x = 591,041,576.23/27,121.95
  6. Step 6: Final answer
    x = 21,792.00

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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.