Home / 28,758.04-39,687.90-17,428.52

Finding the Fourth Proportional to 28,758.04, 39,687.90 and 17,428.52

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Solution

The fourth proportional to 28,758.04, 39,687.90 and 17,428.52 is: 24,052.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,758.04 : 39,687.90 = 17,428.52 : x
  2. Step 2: Convert to fraction form
    28,758.04/39,687.90 = 17,428.52/x
  3. Step 3: Cross multiply
    28,758.04x = 39,687.90 × 17,428.52
  4. Step 4: Simplify right side
    28,758.04x = 691,701,358.91
  5. Step 5: Solve for x
    x = 691,701,358.91/28,758.04
  6. Step 6: Final answer
    x = 24,052.45

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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.