Home / 27,970.48-41,931.96-12,379.60

Finding the Fourth Proportional to 27,970.48, 41,931.96 and 12,379.60

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Solution

The fourth proportional to 27,970.48, 41,931.96 and 12,379.60 is: 18,558.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,970.48 : 41,931.96 = 12,379.60 : x
  2. Step 2: Convert to fraction form
    27,970.48/41,931.96 = 12,379.60/x
  3. Step 3: Cross multiply
    27,970.48x = 41,931.96 × 12,379.60
  4. Step 4: Simplify right side
    27,970.48x = 519,100,892.02
  5. Step 5: Solve for x
    x = 519,100,892.02/27,970.48
  6. Step 6: Final answer
    x = 18,558.88

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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.