Home / 31,563.23-43,538.88-20,228.69

Finding the Fourth Proportional to 31,563.23, 43,538.88 and 20,228.69

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Solution

The fourth proportional to 31,563.23, 43,538.88 and 20,228.69 is: 27,903.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,563.23 : 43,538.88 = 20,228.69 : x
  2. Step 2: Convert to fraction form
    31,563.23/43,538.88 = 20,228.69/x
  3. Step 3: Cross multiply
    31,563.23x = 43,538.88 × 20,228.69
  4. Step 4: Simplify right side
    31,563.23x = 880,734,691.17
  5. Step 5: Solve for x
    x = 880,734,691.17/31,563.23
  6. Step 6: Final answer
    x = 27,903.82

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1.5x scale

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.