Home / 20,935.11-31,360.24-10,373.32

Finding the Fourth Proportional to 20,935.11, 31,360.24 and 10,373.32

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Solution

The fourth proportional to 20,935.11, 31,360.24 and 10,373.32 is: 15,538.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,935.11 : 31,360.24 = 10,373.32 : x
  2. Step 2: Convert to fraction form
    20,935.11/31,360.24 = 10,373.32/x
  3. Step 3: Cross multiply
    20,935.11x = 31,360.24 × 10,373.32
  4. Step 4: Simplify right side
    20,935.11x = 325,309,804.80
  5. Step 5: Solve for x
    x = 325,309,804.80/20,935.11
  6. Step 6: Final answer
    x = 15,538.96

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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.