Home / 28,121.49-42,247.85-16,442.91

Finding the Fourth Proportional to 28,121.49, 42,247.85 and 16,442.91

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Solution

The fourth proportional to 28,121.49, 42,247.85 and 16,442.91 is: 24,702.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,121.49 : 42,247.85 = 16,442.91 : x
  2. Step 2: Convert to fraction form
    28,121.49/42,247.85 = 16,442.91/x
  3. Step 3: Cross multiply
    28,121.49x = 42,247.85 × 16,442.91
  4. Step 4: Simplify right side
    28,121.49x = 694,677,513.03
  5. Step 5: Solve for x
    x = 694,677,513.03/28,121.49
  6. Step 6: Final answer
    x = 24,702.73

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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.