Home / 21,904.38-32,879.96-9,430.59

Finding the Fourth Proportional to 21,904.38, 32,879.96 and 9,430.59

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Solution

The fourth proportional to 21,904.38, 32,879.96 and 9,430.59 is: 14,155.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,904.38 : 32,879.96 = 9,430.59 : x
  2. Step 2: Convert to fraction form
    21,904.38/32,879.96 = 9,430.59/x
  3. Step 3: Cross multiply
    21,904.38x = 32,879.96 × 9,430.59
  4. Step 4: Simplify right side
    21,904.38x = 310,077,421.98
  5. Step 5: Solve for x
    x = 310,077,421.98/21,904.38
  6. Step 6: Final answer
    x = 14,155.96

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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.