Home / 28,375.12-39,158.60-16,277.68

Finding the Fourth Proportional to 28,375.12, 39,158.60 and 16,277.68

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Solution

The fourth proportional to 28,375.12, 39,158.60 and 16,277.68 is: 22,463.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,375.12 : 39,158.60 = 16,277.68 : x
  2. Step 2: Convert to fraction form
    28,375.12/39,158.60 = 16,277.68/x
  3. Step 3: Cross multiply
    28,375.12x = 39,158.60 × 16,277.68
  4. Step 4: Simplify right side
    28,375.12x = 637,411,160.05
  5. Step 5: Solve for x
    x = 637,411,160.05/28,375.12
  6. Step 6: Final answer
    x = 22,463.73

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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.