Home / 21,514.46-29,616.26-18,665.07

Finding the Fourth Proportional to 21,514.46, 29,616.26 and 18,665.07

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Solution

The fourth proportional to 21,514.46, 29,616.26 and 18,665.07 is: 25,693.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,514.46 : 29,616.26 = 18,665.07 : x
  2. Step 2: Convert to fraction form
    21,514.46/29,616.26 = 18,665.07/x
  3. Step 3: Cross multiply
    21,514.46x = 29,616.26 × 18,665.07
  4. Step 4: Simplify right side
    21,514.46x = 552,789,472.71
  5. Step 5: Solve for x
    x = 552,789,472.71/21,514.46
  6. Step 6: Final answer
    x = 25,693.86

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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.