Home / 31,562.60-43,538.02-20,228.07

Finding the Fourth Proportional to 31,562.60, 43,538.02 and 20,228.07

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Solution

The fourth proportional to 31,562.60, 43,538.02 and 20,228.07 is: 27,902.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,562.60 : 43,538.02 = 20,228.07 : x
  2. Step 2: Convert to fraction form
    31,562.60/43,538.02 = 20,228.07/x
  3. Step 3: Cross multiply
    31,562.60x = 43,538.02 × 20,228.07
  4. Step 4: Simplify right side
    31,562.60x = 880,690,116.22
  5. Step 5: Solve for x
    x = 880,690,116.22/31,562.60
  6. Step 6: Final answer
    x = 27,902.96

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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.