Home / 21,632.17-32,434.31-8,485.87

Finding the Fourth Proportional to 21,632.17, 32,434.31 and 8,485.87

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Solution

The fourth proportional to 21,632.17, 32,434.31 and 8,485.87 is: 12,723.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,632.17 : 32,434.31 = 8,485.87 : x
  2. Step 2: Convert to fraction form
    21,632.17/32,434.31 = 8,485.87/x
  3. Step 3: Cross multiply
    21,632.17x = 32,434.31 × 8,485.87
  4. Step 4: Simplify right side
    21,632.17x = 275,233,295.77
  5. Step 5: Solve for x
    x = 275,233,295.77/21,632.17
  6. Step 6: Final answer
    x = 12,723.33

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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.