Home / 28,864.30-43,302.30-16,390.30

Finding the Fourth Proportional to 28,864.30, 43,302.30 and 16,390.30

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Solution

The fourth proportional to 28,864.30, 43,302.30 and 16,390.30 is: 24,588.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,864.30 : 43,302.30 = 16,390.30 : x
  2. Step 2: Convert to fraction form
    28,864.30/43,302.30 = 16,390.30/x
  3. Step 3: Cross multiply
    28,864.30x = 43,302.30 × 16,390.30
  4. Step 4: Simplify right side
    28,864.30x = 709,737,687.69
  5. Step 5: Solve for x
    x = 709,737,687.69/28,864.30
  6. Step 6: Final answer
    x = 24,588.77

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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.