Home / 30,991.62-42,768.27-17,565.41

Finding the Fourth Proportional to 30,991.62, 42,768.27 and 17,565.41

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Solution

The fourth proportional to 30,991.62, 42,768.27 and 17,565.41 is: 24,240.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,991.62 : 42,768.27 = 17,565.41 : x
  2. Step 2: Convert to fraction form
    30,991.62/42,768.27 = 17,565.41/x
  3. Step 3: Cross multiply
    30,991.62x = 42,768.27 × 17,565.41
  4. Step 4: Simplify right side
    30,991.62x = 751,242,197.54
  5. Step 5: Solve for x
    x = 751,242,197.54/30,991.62
  6. Step 6: Final answer
    x = 24,240.17

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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.