Home / 20,643.32-30,977.22-7,496.66

Finding the Fourth Proportional to 20,643.32, 30,977.22 and 7,496.66

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Solution

The fourth proportional to 20,643.32, 30,977.22 and 7,496.66 is: 11,249.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,643.32 : 30,977.22 = 7,496.66 : x
  2. Step 2: Convert to fraction form
    20,643.32/30,977.22 = 7,496.66/x
  3. Step 3: Cross multiply
    20,643.32x = 30,977.22 × 7,496.66
  4. Step 4: Simplify right side
    20,643.32x = 232,225,686.09
  5. Step 5: Solve for x
    x = 232,225,686.09/20,643.32
  6. Step 6: Final answer
    x = 11,249.43

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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.