Home / 21,590.86-32,372.37-9,107.54

Finding the Fourth Proportional to 21,590.86, 32,372.37 and 9,107.54

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Solution

The fourth proportional to 21,590.86, 32,372.37 and 9,107.54 is: 13,655.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,590.86 : 32,372.37 = 9,107.54 : x
  2. Step 2: Convert to fraction form
    21,590.86/32,372.37 = 9,107.54/x
  3. Step 3: Cross multiply
    21,590.86x = 32,372.37 × 9,107.54
  4. Step 4: Simplify right side
    21,590.86x = 294,832,769.75
  5. Step 5: Solve for x
    x = 294,832,769.75/21,590.86
  6. Step 6: Final answer
    x = 13,655.45

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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.