Home / 34,305.78-47,343.72-20,163.18

Finding the Fourth Proportional to 34,305.78, 47,343.72 and 20,163.18

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Solution

The fourth proportional to 34,305.78, 47,343.72 and 20,163.18 is: 27,826.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,305.78 : 47,343.72 = 20,163.18 : x
  2. Step 2: Convert to fraction form
    34,305.78/47,343.72 = 20,163.18/x
  3. Step 3: Cross multiply
    34,305.78x = 47,343.72 × 20,163.18
  4. Step 4: Simplify right side
    34,305.78x = 954,599,948.23
  5. Step 5: Solve for x
    x = 954,599,948.23/34,305.78
  6. Step 6: Final answer
    x = 27,826.21

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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.