Home / 21,580.21-32,374.11-8,929.93

Finding the Fourth Proportional to 21,580.21, 32,374.11 and 8,929.93

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Solution

The fourth proportional to 21,580.21, 32,374.11 and 8,929.93 is: 13,396.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,580.21 : 32,374.11 = 8,929.93 : x
  2. Step 2: Convert to fraction form
    21,580.21/32,374.11 = 8,929.93/x
  3. Step 3: Cross multiply
    21,580.21x = 32,374.11 × 8,929.93
  4. Step 4: Simplify right side
    21,580.21x = 289,098,536.11
  5. Step 5: Solve for x
    x = 289,098,536.11/21,580.21
  6. Step 6: Final answer
    x = 13,396.47

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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.