Home / 21,207.42-31,789.26-9,523.98

Finding the Fourth Proportional to 21,207.42, 31,789.26 and 9,523.98

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Solution

The fourth proportional to 21,207.42, 31,789.26 and 9,523.98 is: 14,276.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,207.42 : 31,789.26 = 9,523.98 : x
  2. Step 2: Convert to fraction form
    21,207.42/31,789.26 = 9,523.98/x
  3. Step 3: Cross multiply
    21,207.42x = 31,789.26 × 9,523.98
  4. Step 4: Simplify right side
    21,207.42x = 302,760,276.45
  5. Step 5: Solve for x
    x = 302,760,276.45/21,207.42
  6. Step 6: Final answer
    x = 14,276.15

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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.