Home / 34,219.89-47,223.81-20,072.97

Finding the Fourth Proportional to 34,219.89, 47,223.81 and 20,072.97

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Solution

The fourth proportional to 34,219.89, 47,223.81 and 20,072.97 is: 27,700.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,219.89 : 47,223.81 = 20,072.97 : x
  2. Step 2: Convert to fraction form
    34,219.89/47,223.81 = 20,072.97/x
  3. Step 3: Cross multiply
    34,219.89x = 47,223.81 × 20,072.97
  4. Step 4: Simplify right side
    34,219.89x = 947,922,121.42
  5. Step 5: Solve for x
    x = 947,922,121.42/34,219.89
  6. Step 6: Final answer
    x = 27,700.91

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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.