Home / 21,295.42-31,946.98-8,808.66

Finding the Fourth Proportional to 21,295.42, 31,946.98 and 8,808.66

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Solution

The fourth proportional to 21,295.42, 31,946.98 and 8,808.66 is: 13,214.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,295.42 : 31,946.98 = 8,808.66 : x
  2. Step 2: Convert to fraction form
    21,295.42/31,946.98 = 8,808.66/x
  3. Step 3: Cross multiply
    21,295.42x = 31,946.98 × 8,808.66
  4. Step 4: Simplify right side
    21,295.42x = 281,410,084.85
  5. Step 5: Solve for x
    x = 281,410,084.85/21,295.42
  6. Step 6: Final answer
    x = 13,214.58

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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.