Home / 43,306.30-64,959.45-21,133.90

Finding the Fourth Proportional to 43,306.30, 64,959.45 and 21,133.90

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Solution

The fourth proportional to 43,306.30, 64,959.45 and 21,133.90 is: 31,700.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,306.30 : 64,959.45 = 21,133.90 : x
  2. Step 2: Convert to fraction form
    43,306.30/64,959.45 = 21,133.90/x
  3. Step 3: Cross multiply
    43,306.30x = 64,959.45 × 21,133.90
  4. Step 4: Simplify right side
    43,306.30x = 1,372,846,520.36
  5. Step 5: Solve for x
    x = 1,372,846,520.36/43,306.30
  6. Step 6: Final answer
    x = 31,700.85

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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.