Home / 28,735.86-39,652.92-15,988.62

Finding the Fourth Proportional to 28,735.86, 39,652.92 and 15,988.62

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Solution

The fourth proportional to 28,735.86, 39,652.92 and 15,988.62 is: 22,062.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,735.86 : 39,652.92 = 15,988.62 : x
  2. Step 2: Convert to fraction form
    28,735.86/39,652.92 = 15,988.62/x
  3. Step 3: Cross multiply
    28,735.86x = 39,652.92 × 15,988.62
  4. Step 4: Simplify right side
    28,735.86x = 633,995,469.77
  5. Step 5: Solve for x
    x = 633,995,469.77/28,735.86
  6. Step 6: Final answer
    x = 22,062.87

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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.