Home / 21,726.43-29,967.03-19,939.69

Finding the Fourth Proportional to 21,726.43, 29,967.03 and 19,939.69

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Solution

The fourth proportional to 21,726.43, 29,967.03 and 19,939.69 is: 27,502.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,726.43 : 29,967.03 = 19,939.69 : x
  2. Step 2: Convert to fraction form
    21,726.43/29,967.03 = 19,939.69/x
  3. Step 3: Cross multiply
    21,726.43x = 29,967.03 × 19,939.69
  4. Step 4: Simplify right side
    21,726.43x = 597,533,288.42
  5. Step 5: Solve for x
    x = 597,533,288.42/21,726.43
  6. Step 6: Final answer
    x = 27,502.60

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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.