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Finding the Fourth Proportional to 21,867.41, 32,800.99 and 9,379.34

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Solution

The fourth proportional to 21,867.41, 32,800.99 and 9,379.34 is: 14,068.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,867.41 : 32,800.99 = 9,379.34 : x
  2. Step 2: Convert to fraction form
    21,867.41/32,800.99 = 9,379.34/x
  3. Step 3: Cross multiply
    21,867.41x = 32,800.99 × 9,379.34
  4. Step 4: Simplify right side
    21,867.41x = 307,651,637.55
  5. Step 5: Solve for x
    x = 307,651,637.55/21,867.41
  6. Step 6: Final answer
    x = 14,068.96

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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.