Home / 30,142.80-41,587.60-17,394.31

Finding the Fourth Proportional to 30,142.80, 41,587.60 and 17,394.31

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Solution

The fourth proportional to 30,142.80, 41,587.60 and 17,394.31 is: 23,998.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,142.80 : 41,587.60 = 17,394.31 : x
  2. Step 2: Convert to fraction form
    30,142.80/41,587.60 = 17,394.31/x
  3. Step 3: Cross multiply
    30,142.80x = 41,587.60 × 17,394.31
  4. Step 4: Simplify right side
    30,142.80x = 723,387,519.58
  5. Step 5: Solve for x
    x = 723,387,519.58/30,142.80
  6. Step 6: Final answer
    x = 23,998.68

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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.