Home / 21,541.42-29,684.82-16,511.32

Finding the Fourth Proportional to 21,541.42, 29,684.82 and 16,511.32

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Solution

The fourth proportional to 21,541.42, 29,684.82 and 16,511.32 is: 22,753.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,541.42 : 29,684.82 = 16,511.32 : x
  2. Step 2: Convert to fraction form
    21,541.42/29,684.82 = 16,511.32/x
  3. Step 3: Cross multiply
    21,541.42x = 29,684.82 × 16,511.32
  4. Step 4: Simplify right side
    21,541.42x = 490,135,562.16
  5. Step 5: Solve for x
    x = 490,135,562.16/21,541.42
  6. Step 6: Final answer
    x = 22,753.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.