Home / 31,720.23-43,773.42-17,379.95

Finding the Fourth Proportional to 31,720.23, 43,773.42 and 17,379.95

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Solution

The fourth proportional to 31,720.23, 43,773.42 and 17,379.95 is: 23,984.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,720.23 : 43,773.42 = 17,379.95 : x
  2. Step 2: Convert to fraction form
    31,720.23/43,773.42 = 17,379.95/x
  3. Step 3: Cross multiply
    31,720.23x = 43,773.42 × 17,379.95
  4. Step 4: Simplify right side
    31,720.23x = 760,779,632.06
  5. Step 5: Solve for x
    x = 760,779,632.06/31,720.23
  6. Step 6: Final answer
    x = 23,984.05

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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.