Home / 34,287.18-47,314.80-21,553.44

Finding the Fourth Proportional to 34,287.18, 47,314.80 and 21,553.44

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Solution

The fourth proportional to 34,287.18, 47,314.80 and 21,553.44 is: 29,742.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,287.18 : 47,314.80 = 21,553.44 : x
  2. Step 2: Convert to fraction form
    34,287.18/47,314.80 = 21,553.44/x
  3. Step 3: Cross multiply
    34,287.18x = 47,314.80 × 21,553.44
  4. Step 4: Simplify right side
    34,287.18x = 1,019,796,702.91
  5. Step 5: Solve for x
    x = 1,019,796,702.91/34,287.18
  6. Step 6: Final answer
    x = 29,742.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.