Home / 28,731.22-39,648.81-16,155.88

Finding the Fourth Proportional to 28,731.22, 39,648.81 and 16,155.88

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Solution

The fourth proportional to 28,731.22, 39,648.81 and 16,155.88 is: 22,294.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,731.22 : 39,648.81 = 16,155.88 : x
  2. Step 2: Convert to fraction form
    28,731.22/39,648.81 = 16,155.88/x
  3. Step 3: Cross multiply
    28,731.22x = 39,648.81 × 16,155.88
  4. Step 4: Simplify right side
    28,731.22x = 640,561,416.50
  5. Step 5: Solve for x
    x = 640,561,416.50/28,731.22
  6. Step 6: Final answer
    x = 22,294.96

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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.