Home / 21,461.16-32,150.22-12,072.66

Finding the Fourth Proportional to 21,461.16, 32,150.22 and 12,072.66

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Solution

The fourth proportional to 21,461.16, 32,150.22 and 12,072.66 is: 18,085.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,461.16 : 32,150.22 = 12,072.66 : x
  2. Step 2: Convert to fraction form
    21,461.16/32,150.22 = 12,072.66/x
  3. Step 3: Cross multiply
    21,461.16x = 32,150.22 × 12,072.66
  4. Step 4: Simplify right side
    21,461.16x = 388,138,674.99
  5. Step 5: Solve for x
    x = 388,138,674.99/21,461.16
  6. Step 6: Final answer
    x = 18,085.63

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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.