Home / 43,056.27-64,490.67-20,822.76

Finding the Fourth Proportional to 43,056.27, 64,490.67 and 20,822.76

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Solution

The fourth proportional to 43,056.27, 64,490.67 and 20,822.76 is: 31,188.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,056.27 : 64,490.67 = 20,822.76 : x
  2. Step 2: Convert to fraction form
    43,056.27/64,490.67 = 20,822.76/x
  3. Step 3: Cross multiply
    43,056.27x = 64,490.67 × 20,822.76
  4. Step 4: Simplify right side
    43,056.27x = 1,342,873,743.65
  5. Step 5: Solve for x
    x = 1,342,873,743.65/43,056.27
  6. Step 6: Final answer
    x = 31,188.81

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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.