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Finding the Fourth Proportional to 34,400.90, 47,454.02 and 21,649.32

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Solution

The fourth proportional to 34,400.90, 47,454.02 and 21,649.32 is: 29,863.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,400.90 : 47,454.02 = 21,649.32 : x
  2. Step 2: Convert to fraction form
    34,400.90/47,454.02 = 21,649.32/x
  3. Step 3: Cross multiply
    34,400.90x = 47,454.02 × 21,649.32
  4. Step 4: Simplify right side
    34,400.90x = 1,027,347,156.02
  5. Step 5: Solve for x
    x = 1,027,347,156.02/34,400.90
  6. Step 6: Final answer
    x = 29,863.97

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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.