Home / 21,935.50-32,906.67-7,140.93

Finding the Fourth Proportional to 21,935.50, 32,906.67 and 7,140.93

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Solution

The fourth proportional to 21,935.50, 32,906.67 and 7,140.93 is: 10,712.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,935.50 : 32,906.67 = 7,140.93 : x
  2. Step 2: Convert to fraction form
    21,935.50/32,906.67 = 7,140.93/x
  3. Step 3: Cross multiply
    21,935.50x = 32,906.67 × 7,140.93
  4. Step 4: Simplify right side
    21,935.50x = 234,984,227.00
  5. Step 5: Solve for x
    x = 234,984,227.00/21,935.50
  6. Step 6: Final answer
    x = 10,712.51

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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.