Home / 28,472.80-39,286.44-16,529.94

Finding the Fourth Proportional to 28,472.80, 39,286.44 and 16,529.94

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Solution

The fourth proportional to 28,472.80, 39,286.44 and 16,529.94 is: 22,807.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,472.80 : 39,286.44 = 16,529.94 : x
  2. Step 2: Convert to fraction form
    28,472.80/39,286.44 = 16,529.94/x
  3. Step 3: Cross multiply
    28,472.80x = 39,286.44 × 16,529.94
  4. Step 4: Simplify right side
    28,472.80x = 649,402,496.01
  5. Step 5: Solve for x
    x = 649,402,496.01/28,472.80
  6. Step 6: Final answer
    x = 22,807.82

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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.