Home / 21,367.79-32,051.66-8,879.31

Finding the Fourth Proportional to 21,367.79, 32,051.66 and 8,879.31

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Solution

The fourth proportional to 21,367.79, 32,051.66 and 8,879.31 is: 13,318.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,367.79 : 32,051.66 = 8,879.31 : x
  2. Step 2: Convert to fraction form
    21,367.79/32,051.66 = 8,879.31/x
  3. Step 3: Cross multiply
    21,367.79x = 32,051.66 × 8,879.31
  4. Step 4: Simplify right side
    21,367.79x = 284,596,580.76
  5. Step 5: Solve for x
    x = 284,596,580.76/21,367.79
  6. Step 6: Final answer
    x = 13,318.96

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1.5x scale

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.