Home / 21,654.91-29,883.78-12,224.08

Finding the Fourth Proportional to 21,654.91, 29,883.78 and 12,224.08

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Solution

The fourth proportional to 21,654.91, 29,883.78 and 12,224.08 is: 16,869.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,654.91 : 29,883.78 = 12,224.08 : x
  2. Step 2: Convert to fraction form
    21,654.91/29,883.78 = 12,224.08/x
  3. Step 3: Cross multiply
    21,654.91x = 29,883.78 × 12,224.08
  4. Step 4: Simplify right side
    21,654.91x = 365,301,656.30
  5. Step 5: Solve for x
    x = 365,301,656.30/21,654.91
  6. Step 6: Final answer
    x = 16,869.23

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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.