Home / 28,105.26-42,137.38-16,242.30

Finding the Fourth Proportional to 28,105.26, 42,137.38 and 16,242.30

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Solution

The fourth proportional to 28,105.26, 42,137.38 and 16,242.30 is: 24,351.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,105.26 : 42,137.38 = 16,242.30 : x
  2. Step 2: Convert to fraction form
    28,105.26/42,137.38 = 16,242.30/x
  3. Step 3: Cross multiply
    28,105.26x = 42,137.38 × 16,242.30
  4. Step 4: Simplify right side
    28,105.26x = 684,407,967.17
  5. Step 5: Solve for x
    x = 684,407,967.17/28,105.26
  6. Step 6: Final answer
    x = 24,351.60

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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.