Home / 20,935.76-31,404.59-5,943.95

Finding the Fourth Proportional to 20,935.76, 31,404.59 and 5,943.95

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Solution

The fourth proportional to 20,935.76, 31,404.59 and 5,943.95 is: 8,916.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,935.76 : 31,404.59 = 5,943.95 : x
  2. Step 2: Convert to fraction form
    20,935.76/31,404.59 = 5,943.95/x
  3. Step 3: Cross multiply
    20,935.76x = 31,404.59 × 5,943.95
  4. Step 4: Simplify right side
    20,935.76x = 186,667,170.57
  5. Step 5: Solve for x
    x = 186,667,170.57/20,935.76
  6. Step 6: Final answer
    x = 8,916.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.