Home / 30,839.06-42,565.88-20,110.68

Finding the Fourth Proportional to 30,839.06, 42,565.88 and 20,110.68

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Solution

The fourth proportional to 30,839.06, 42,565.88 and 20,110.68 is: 27,757.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,839.06 : 42,565.88 = 20,110.68 : x
  2. Step 2: Convert to fraction form
    30,839.06/42,565.88 = 20,110.68/x
  3. Step 3: Cross multiply
    30,839.06x = 42,565.88 × 20,110.68
  4. Step 4: Simplify right side
    30,839.06x = 856,028,841.88
  5. Step 5: Solve for x
    x = 856,028,841.88/30,839.06
  6. Step 6: Final answer
    x = 27,757.94

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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.