Home / 37,419.30-56,116.80-12,455.10

Finding the Fourth Proportional to 37,419.30, 56,116.80 and 12,455.10

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Solution

The fourth proportional to 37,419.30, 56,116.80 and 12,455.10 is: 18,678.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,419.30 : 56,116.80 = 12,455.10 : x
  2. Step 2: Convert to fraction form
    37,419.30/56,116.80 = 12,455.10/x
  3. Step 3: Cross multiply
    37,419.30x = 56,116.80 × 12,455.10
  4. Step 4: Simplify right side
    37,419.30x = 698,940,355.68
  5. Step 5: Solve for x
    x = 698,940,355.68/37,419.30
  6. Step 6: Final answer
    x = 18,678.61

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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.