Home / 28,583.36-42,881.20-8,861.52

Finding the Fourth Proportional to 28,583.36, 42,881.20 and 8,861.52

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Solution

The fourth proportional to 28,583.36, 42,881.20 and 8,861.52 is: 13,294.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,583.36 : 42,881.20 = 8,861.52 : x
  2. Step 2: Convert to fraction form
    28,583.36/42,881.20 = 8,861.52/x
  3. Step 3: Cross multiply
    28,583.36x = 42,881.20 × 8,861.52
  4. Step 4: Simplify right side
    28,583.36x = 379,992,611.42
  5. Step 5: Solve for x
    x = 379,992,611.42/28,583.36
  6. Step 6: Final answer
    x = 13,294.19

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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.