Home / 37,705.13-56,557.79-12,738.50

Finding the Fourth Proportional to 37,705.13, 56,557.79 and 12,738.50

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Solution

The fourth proportional to 37,705.13, 56,557.79 and 12,738.50 is: 19,107.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,705.13 : 56,557.79 = 12,738.50 : x
  2. Step 2: Convert to fraction form
    37,705.13/56,557.79 = 12,738.50/x
  3. Step 3: Cross multiply
    37,705.13x = 56,557.79 × 12,738.50
  4. Step 4: Simplify right side
    37,705.13x = 720,461,407.92
  5. Step 5: Solve for x
    x = 720,461,407.92/37,705.13
  6. Step 6: Final answer
    x = 19,107.78

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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.