Home / 22,918.80-31,630.19-12,847.26

Finding the Fourth Proportional to 22,918.80, 31,630.19 and 12,847.26

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Solution

The fourth proportional to 22,918.80, 31,630.19 and 12,847.26 is: 17,730.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,918.80 : 31,630.19 = 12,847.26 : x
  2. Step 2: Convert to fraction form
    22,918.80/31,630.19 = 12,847.26/x
  3. Step 3: Cross multiply
    22,918.80x = 31,630.19 × 12,847.26
  4. Step 4: Simplify right side
    22,918.80x = 406,361,210.54
  5. Step 5: Solve for x
    x = 406,361,210.54/22,918.80
  6. Step 6: Final answer
    x = 17,730.48

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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.