Home / 28,568.68-39,425.22-17,238.76

Finding the Fourth Proportional to 28,568.68, 39,425.22 and 17,238.76

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Solution

The fourth proportional to 28,568.68, 39,425.22 and 17,238.76 is: 23,789.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,568.68 : 39,425.22 = 17,238.76 : x
  2. Step 2: Convert to fraction form
    28,568.68/39,425.22 = 17,238.76/x
  3. Step 3: Cross multiply
    28,568.68x = 39,425.22 × 17,238.76
  4. Step 4: Simplify right side
    28,568.68x = 679,641,905.53
  5. Step 5: Solve for x
    x = 679,641,905.53/28,568.68
  6. Step 6: Final answer
    x = 23,789.76

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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.