Home / 31,619.64-43,655.46-20,294.04

Finding the Fourth Proportional to 31,619.64, 43,655.46 and 20,294.04

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Solution

The fourth proportional to 31,619.64, 43,655.46 and 20,294.04 is: 28,018.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,619.64 : 43,655.46 = 20,294.04 : x
  2. Step 2: Convert to fraction form
    31,619.64/43,655.46 = 20,294.04/x
  3. Step 3: Cross multiply
    31,619.64x = 43,655.46 × 20,294.04
  4. Step 4: Simplify right side
    31,619.64x = 885,945,651.46
  5. Step 5: Solve for x
    x = 885,945,651.46/31,619.64
  6. Step 6: Final answer
    x = 28,018.84

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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.