Home / 28,658.72-39,548.25-17,180.12

Finding the Fourth Proportional to 28,658.72, 39,548.25 and 17,180.12

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Solution

The fourth proportional to 28,658.72, 39,548.25 and 17,180.12 is: 23,708.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,658.72 : 39,548.25 = 17,180.12 : x
  2. Step 2: Convert to fraction form
    28,658.72/39,548.25 = 17,180.12/x
  3. Step 3: Cross multiply
    28,658.72x = 39,548.25 × 17,180.12
  4. Step 4: Simplify right side
    28,658.72x = 679,443,483.05
  5. Step 5: Solve for x
    x = 679,443,483.05/28,658.72
  6. Step 6: Final answer
    x = 23,708.09

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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.