Home / 21,466.80-29,625.48-12,036.78

Finding the Fourth Proportional to 21,466.80, 29,625.48 and 12,036.78

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Solution

The fourth proportional to 21,466.80, 29,625.48 and 12,036.78 is: 16,611.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,466.80 : 29,625.48 = 12,036.78 : x
  2. Step 2: Convert to fraction form
    21,466.80/29,625.48 = 12,036.78/x
  3. Step 3: Cross multiply
    21,466.80x = 29,625.48 × 12,036.78
  4. Step 4: Simplify right side
    21,466.80x = 356,595,385.15
  5. Step 5: Solve for x
    x = 356,595,385.15/21,466.80
  6. Step 6: Final answer
    x = 16,611.48

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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.