Home / 22,711.57-34,068.79-7,129.81

Finding the Fourth Proportional to 22,711.57, 34,068.79 and 7,129.81

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Solution

The fourth proportional to 22,711.57, 34,068.79 and 7,129.81 is: 10,695.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,711.57 : 34,068.79 = 7,129.81 : x
  2. Step 2: Convert to fraction form
    22,711.57/34,068.79 = 7,129.81/x
  3. Step 3: Cross multiply
    22,711.57x = 34,068.79 × 7,129.81
  4. Step 4: Simplify right side
    22,711.57x = 242,903,923.37
  5. Step 5: Solve for x
    x = 242,903,923.37/22,711.57
  6. Step 6: Final answer
    x = 10,695.16

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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.