Home / 28,386.72-39,173.68-16,456.97

Finding the Fourth Proportional to 28,386.72, 39,173.68 and 16,456.97

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Solution

The fourth proportional to 28,386.72, 39,173.68 and 16,456.97 is: 22,710.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,386.72 : 39,173.68 = 16,456.97 : x
  2. Step 2: Convert to fraction form
    28,386.72/39,173.68 = 16,456.97/x
  3. Step 3: Cross multiply
    28,386.72x = 39,173.68 × 16,456.97
  4. Step 4: Simplify right side
    28,386.72x = 644,680,076.55
  5. Step 5: Solve for x
    x = 644,680,076.55/28,386.72
  6. Step 6: Final answer
    x = 22,710.63

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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.