Home / 28,092.70-42,139.05-16,234.30

Finding the Fourth Proportional to 28,092.70, 42,139.05 and 16,234.30

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Solution

The fourth proportional to 28,092.70, 42,139.05 and 16,234.30 is: 24,351.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,092.70 : 42,139.05 = 16,234.30 : x
  2. Step 2: Convert to fraction form
    28,092.70/42,139.05 = 16,234.30/x
  3. Step 3: Cross multiply
    28,092.70x = 42,139.05 × 16,234.30
  4. Step 4: Simplify right side
    28,092.70x = 684,097,979.42
  5. Step 5: Solve for x
    x = 684,097,979.42/28,092.70
  6. Step 6: Final answer
    x = 24,351.45

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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.