Home / 19,720.72-29,491.23-14,726.60

Finding the Fourth Proportional to 19,720.72, 29,491.23 and 14,726.60

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Solution

The fourth proportional to 19,720.72, 29,491.23 and 14,726.60 is: 22,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720.72 : 29,491.23 = 14,726.60 : x
  2. Step 2: Convert to fraction form
    19,720.72/29,491.23 = 14,726.60/x
  3. Step 3: Cross multiply
    19,720.72x = 29,491.23 × 14,726.60
  4. Step 4: Simplify right side
    19,720.72x = 434,305,400.26
  5. Step 5: Solve for x
    x = 434,305,400.26/19,720.72
  6. Step 6: Final answer
    x = 22,022.80

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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.