Home / 27,141.60-40,633.20-19,365.60

Finding the Fourth Proportional to 27,141.60, 40,633.20 and 19,365.60

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Solution

The fourth proportional to 27,141.60, 40,633.20 and 19,365.60 is: 28,991.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,141.60 : 40,633.20 = 19,365.60 : x
  2. Step 2: Convert to fraction form
    27,141.60/40,633.20 = 19,365.60/x
  3. Step 3: Cross multiply
    27,141.60x = 40,633.20 × 19,365.60
  4. Step 4: Simplify right side
    27,141.60x = 786,886,297.92
  5. Step 5: Solve for x
    x = 786,886,297.92/27,141.60
  6. Step 6: Final answer
    x = 28,991.89

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1.5x scale

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.