Home / 27,027.60-40,487.67-21,156.72

Finding the Fourth Proportional to 27,027.60, 40,487.67 and 21,156.72

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Solution

The fourth proportional to 27,027.60, 40,487.67 and 21,156.72 is: 31,693.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,027.60 : 40,487.67 = 21,156.72 : x
  2. Step 2: Convert to fraction form
    27,027.60/40,487.67 = 21,156.72/x
  3. Step 3: Cross multiply
    27,027.60x = 40,487.67 × 21,156.72
  4. Step 4: Simplify right side
    27,027.60x = 856,586,297.64
  5. Step 5: Solve for x
    x = 856,586,297.64/27,027.60
  6. Step 6: Final answer
    x = 31,693.02

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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.