Home / 21,722-32,583.38-8,574.28

Finding the Fourth Proportional to 21,722, 32,583.38 and 8,574.28

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Solution

The fourth proportional to 21,722, 32,583.38 and 8,574.28 is: 12,861.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,722 : 32,583.38 = 8,574.28 : x
  2. Step 2: Convert to fraction form
    21,722/32,583.38 = 8,574.28/x
  3. Step 3: Cross multiply
    21,722x = 32,583.38 × 8,574.28
  4. Step 4: Simplify right side
    21,722x = 279,379,023.47
  5. Step 5: Solve for x
    x = 279,379,023.47/21,722
  6. Step 6: Final answer
    x = 12,861.57

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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.