Home / 21,577.11-29,777.01-12,146.01

Finding the Fourth Proportional to 21,577.11, 29,777.01 and 12,146.01

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Solution

The fourth proportional to 21,577.11, 29,777.01 and 12,146.01 is: 16,761.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,577.11 : 29,777.01 = 12,146.01 : x
  2. Step 2: Convert to fraction form
    21,577.11/29,777.01 = 12,146.01/x
  3. Step 3: Cross multiply
    21,577.11x = 29,777.01 × 12,146.01
  4. Step 4: Simplify right side
    21,577.11x = 361,671,861.23
  5. Step 5: Solve for x
    x = 361,671,861.23/21,577.11
  6. Step 6: Final answer
    x = 16,761.83

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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.