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Finding the Fourth Proportional to 28,607.50, 39,480.78 and 16,034.68

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Solution

The fourth proportional to 28,607.50, 39,480.78 and 16,034.68 is: 22,129.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,607.50 : 39,480.78 = 16,034.68 : x
  2. Step 2: Convert to fraction form
    28,607.50/39,480.78 = 16,034.68/x
  3. Step 3: Cross multiply
    28,607.50x = 39,480.78 × 16,034.68
  4. Step 4: Simplify right side
    28,607.50x = 633,061,673.45
  5. Step 5: Solve for x
    x = 633,061,673.45/28,607.50
  6. Step 6: Final answer
    x = 22,129.22

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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.