Home / 21,502.62-29,659.35-12,999.18

Finding the Fourth Proportional to 21,502.62, 29,659.35 and 12,999.18

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Solution

The fourth proportional to 21,502.62, 29,659.35 and 12,999.18 is: 17,930.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,502.62 : 29,659.35 = 12,999.18 : x
  2. Step 2: Convert to fraction form
    21,502.62/29,659.35 = 12,999.18/x
  3. Step 3: Cross multiply
    21,502.62x = 29,659.35 × 12,999.18
  4. Step 4: Simplify right side
    21,502.62x = 385,547,229.33
  5. Step 5: Solve for x
    x = 385,547,229.33/21,502.62
  6. Step 6: Final answer
    x = 17,930.24

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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.