Home / 28,190.18-42,285.03-8,468.66

Finding the Fourth Proportional to 28,190.18, 42,285.03 and 8,468.66

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Solution

The fourth proportional to 28,190.18, 42,285.03 and 8,468.66 is: 12,702.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,190.18 : 42,285.03 = 8,468.66 : x
  2. Step 2: Convert to fraction form
    28,190.18/42,285.03 = 8,468.66/x
  3. Step 3: Cross multiply
    28,190.18x = 42,285.03 × 8,468.66
  4. Step 4: Simplify right side
    28,190.18x = 358,097,542.16
  5. Step 5: Solve for x
    x = 358,097,542.16/28,190.18
  6. Step 6: Final answer
    x = 12,702.92

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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.