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Finding the Fourth Proportional to 21,611.58, 32,416.29 and 8,466.36

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Solution

The fourth proportional to 21,611.58, 32,416.29 and 8,466.36 is: 12,699.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,611.58 : 32,416.29 = 8,466.36 : x
  2. Step 2: Convert to fraction form
    21,611.58/32,416.29 = 8,466.36/x
  3. Step 3: Cross multiply
    21,611.58x = 32,416.29 × 8,466.36
  4. Step 4: Simplify right side
    21,611.58x = 274,447,981.00
  5. Step 5: Solve for x
    x = 274,447,981.00/21,611.58
  6. Step 6: Final answer
    x = 12,699.12

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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.