Home / 21,604.23-29,814.08-12,172.59

Finding the Fourth Proportional to 21,604.23, 29,814.08 and 12,172.59

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Solution

The fourth proportional to 21,604.23, 29,814.08 and 12,172.59 is: 16,798.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,604.23 : 29,814.08 = 12,172.59 : x
  2. Step 2: Convert to fraction form
    21,604.23/29,814.08 = 12,172.59/x
  3. Step 3: Cross multiply
    21,604.23x = 29,814.08 × 12,172.59
  4. Step 4: Simplify right side
    21,604.23x = 362,914,511.20
  5. Step 5: Solve for x
    x = 362,914,511.20/21,604.23
  6. Step 6: Final answer
    x = 16,798.31

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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.