Home / 21,857.40-32,774.58-9,531

Finding the Fourth Proportional to 21,857.40, 32,774.58 and 9,531

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Solution

The fourth proportional to 21,857.40, 32,774.58 and 9,531 is: 14,291.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,857.40 : 32,774.58 = 9,531 : x
  2. Step 2: Convert to fraction form
    21,857.40/32,774.58 = 9,531/x
  3. Step 3: Cross multiply
    21,857.40x = 32,774.58 × 9,531
  4. Step 4: Simplify right side
    21,857.40x = 312,374,521.98
  5. Step 5: Solve for x
    x = 312,374,521.98/21,857.40
  6. Step 6: Final answer
    x = 14,291.48

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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.