Home / 28,270.35-42,340.55-16,394.72

Finding the Fourth Proportional to 28,270.35, 42,340.55 and 16,394.72

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Solution

The fourth proportional to 28,270.35, 42,340.55 and 16,394.72 is: 24,554.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,270.35 : 42,340.55 = 16,394.72 : x
  2. Step 2: Convert to fraction form
    28,270.35/42,340.55 = 16,394.72/x
  3. Step 3: Cross multiply
    28,270.35x = 42,340.55 × 16,394.72
  4. Step 4: Simplify right side
    28,270.35x = 694,161,168.22
  5. Step 5: Solve for x
    x = 694,161,168.22/28,270.35
  6. Step 6: Final answer
    x = 24,554.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.