Home / 20,726.24-31,067.30-14,136.08

Finding the Fourth Proportional to 20,726.24, 31,067.30 and 14,136.08

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Solution

The fourth proportional to 20,726.24, 31,067.30 and 14,136.08 is: 21,189.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,726.24 : 31,067.30 = 14,136.08 : x
  2. Step 2: Convert to fraction form
    20,726.24/31,067.30 = 14,136.08/x
  3. Step 3: Cross multiply
    20,726.24x = 31,067.30 × 14,136.08
  4. Step 4: Simplify right side
    20,726.24x = 439,169,838.18
  5. Step 5: Solve for x
    x = 439,169,838.18/20,726.24
  6. Step 6: Final answer
    x = 21,189.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.