Home / 21,739.65-29,993.52-15,022.86

Finding the Fourth Proportional to 21,739.65, 29,993.52 and 15,022.86

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Solution

The fourth proportional to 21,739.65, 29,993.52 and 15,022.86 is: 20,726.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,739.65 : 29,993.52 = 15,022.86 : x
  2. Step 2: Convert to fraction form
    21,739.65/29,993.52 = 15,022.86/x
  3. Step 3: Cross multiply
    21,739.65x = 29,993.52 × 15,022.86
  4. Step 4: Simplify right side
    21,739.65x = 450,588,451.87
  5. Step 5: Solve for x
    x = 450,588,451.87/21,739.65
  6. Step 6: Final answer
    x = 20,726.57

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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.