Home / 28,538.11-42,788.94-13,717.54

Finding the Fourth Proportional to 28,538.11, 42,788.94 and 13,717.54

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Solution

The fourth proportional to 28,538.11, 42,788.94 and 13,717.54 is: 20,567.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,538.11 : 42,788.94 = 13,717.54 : x
  2. Step 2: Convert to fraction form
    28,538.11/42,788.94 = 13,717.54/x
  3. Step 3: Cross multiply
    28,538.11x = 42,788.94 × 13,717.54
  4. Step 4: Simplify right side
    28,538.11x = 586,958,996.01
  5. Step 5: Solve for x
    x = 586,958,996.01/28,538.11
  6. Step 6: Final answer
    x = 20,567.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.