Home / 39,453.30-59,128.11-18,682.74

Finding the Fourth Proportional to 39,453.30, 59,128.11 and 18,682.74

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Solution

The fourth proportional to 39,453.30, 59,128.11 and 18,682.74 is: 27,999.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,453.30 : 59,128.11 = 18,682.74 : x
  2. Step 2: Convert to fraction form
    39,453.30/59,128.11 = 18,682.74/x
  3. Step 3: Cross multiply
    39,453.30x = 59,128.11 × 18,682.74
  4. Step 4: Simplify right side
    39,453.30x = 1,104,675,105.82
  5. Step 5: Solve for x
    x = 1,104,675,105.82/39,453.30
  6. Step 6: Final answer
    x = 27,999.56

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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.