Home / 31,390.22-43,317.65-17,243.07

Finding the Fourth Proportional to 31,390.22, 43,317.65 and 17,243.07

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Solution

The fourth proportional to 31,390.22, 43,317.65 and 17,243.07 is: 23,794.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,390.22 : 43,317.65 = 17,243.07 : x
  2. Step 2: Convert to fraction form
    31,390.22/43,317.65 = 17,243.07/x
  3. Step 3: Cross multiply
    31,390.22x = 43,317.65 × 17,243.07
  4. Step 4: Simplify right side
    31,390.22x = 746,929,271.19
  5. Step 5: Solve for x
    x = 746,929,271.19/31,390.22
  6. Step 6: Final answer
    x = 23,794.97

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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.