Home / 37,921.56-56,870-12,614.28

Finding the Fourth Proportional to 37,921.56, 56,870 and 12,614.28

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Solution

The fourth proportional to 37,921.56, 56,870 and 12,614.28 is: 18,917.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,921.56 : 56,870 = 12,614.28 : x
  2. Step 2: Convert to fraction form
    37,921.56/56,870 = 12,614.28/x
  3. Step 3: Cross multiply
    37,921.56x = 56,870 × 12,614.28
  4. Step 4: Simplify right side
    37,921.56x = 717,374,103.60
  5. Step 5: Solve for x
    x = 717,374,103.60/37,921.56
  6. Step 6: Final answer
    x = 18,917.32

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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.