Home / 28,007.10-38,641.50-16,667.50

Finding the Fourth Proportional to 28,007.10, 38,641.50 and 16,667.50

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Solution

The fourth proportional to 28,007.10, 38,641.50 and 16,667.50 is: 22,996.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,007.10 : 38,641.50 = 16,667.50 : x
  2. Step 2: Convert to fraction form
    28,007.10/38,641.50 = 16,667.50/x
  3. Step 3: Cross multiply
    28,007.10x = 38,641.50 × 16,667.50
  4. Step 4: Simplify right side
    28,007.10x = 644,057,201.25
  5. Step 5: Solve for x
    x = 644,057,201.25/28,007.10
  6. Step 6: Final answer
    x = 22,996.21

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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.