Home / 21,606.16-29,817.08-12,175.04

Finding the Fourth Proportional to 21,606.16, 29,817.08 and 12,175.04

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Solution

The fourth proportional to 21,606.16, 29,817.08 and 12,175.04 is: 16,801.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,606.16 : 29,817.08 = 12,175.04 : x
  2. Step 2: Convert to fraction form
    21,606.16/29,817.08 = 12,175.04/x
  3. Step 3: Cross multiply
    21,606.16x = 29,817.08 × 12,175.04
  4. Step 4: Simplify right side
    21,606.16x = 363,024,141.68
  5. Step 5: Solve for x
    x = 363,024,141.68/21,606.16
  6. Step 6: Final answer
    x = 16,801.88

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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.