Home / 23,135.20-34,702.80-12,767.20

Finding the Fourth Proportional to 23,135.20, 34,702.80 and 12,767.20

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Solution

The fourth proportional to 23,135.20, 34,702.80 and 12,767.20 is: 19,150.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,135.20 : 34,702.80 = 12,767.20 : x
  2. Step 2: Convert to fraction form
    23,135.20/34,702.80 = 12,767.20/x
  3. Step 3: Cross multiply
    23,135.20x = 34,702.80 × 12,767.20
  4. Step 4: Simplify right side
    23,135.20x = 443,057,588.16
  5. Step 5: Solve for x
    x = 443,057,588.16/23,135.20
  6. Step 6: Final answer
    x = 19,150.80

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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.