Home / 21,916.38-32,861.40-8,573.48

Finding the Fourth Proportional to 21,916.38, 32,861.40 and 8,573.48

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Solution

The fourth proportional to 21,916.38, 32,861.40 and 8,573.48 is: 12,855.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,916.38 : 32,861.40 = 8,573.48 : x
  2. Step 2: Convert to fraction form
    21,916.38/32,861.40 = 8,573.48/x
  3. Step 3: Cross multiply
    21,916.38x = 32,861.40 × 8,573.48
  4. Step 4: Simplify right side
    21,916.38x = 281,736,555.67
  5. Step 5: Solve for x
    x = 281,736,555.67/21,916.38
  6. Step 6: Final answer
    x = 12,855.07

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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.