Home / 34,037.22-51,056.32-12,978.40

Finding the Fourth Proportional to 34,037.22, 51,056.32 and 12,978.40

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Solution

The fourth proportional to 34,037.22, 51,056.32 and 12,978.40 is: 19,467.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,037.22 : 51,056.32 = 12,978.40 : x
  2. Step 2: Convert to fraction form
    34,037.22/51,056.32 = 12,978.40/x
  3. Step 3: Cross multiply
    34,037.22x = 51,056.32 × 12,978.40
  4. Step 4: Simplify right side
    34,037.22x = 662,629,343.49
  5. Step 5: Solve for x
    x = 662,629,343.49/34,037.22
  6. Step 6: Final answer
    x = 19,467.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.