Home / 21,777.42-30,052.26-12,345.96

Finding the Fourth Proportional to 21,777.42, 30,052.26 and 12,345.96

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Solution

The fourth proportional to 21,777.42, 30,052.26 and 12,345.96 is: 17,037.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,777.42 : 30,052.26 = 12,345.96 : x
  2. Step 2: Convert to fraction form
    21,777.42/30,052.26 = 12,345.96/x
  3. Step 3: Cross multiply
    21,777.42x = 30,052.26 × 12,345.96
  4. Step 4: Simplify right side
    21,777.42x = 371,023,999.87
  5. Step 5: Solve for x
    x = 371,023,999.87/21,777.42
  6. Step 6: Final answer
    x = 17,037.10

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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.