Home / 39,814.83-59,709.57-13,155.87

Finding the Fourth Proportional to 39,814.83, 59,709.57 and 13,155.87

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Solution

The fourth proportional to 39,814.83, 59,709.57 and 13,155.87 is: 19,729.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,814.83 : 59,709.57 = 13,155.87 : x
  2. Step 2: Convert to fraction form
    39,814.83/59,709.57 = 13,155.87/x
  3. Step 3: Cross multiply
    39,814.83x = 59,709.57 × 13,155.87
  4. Step 4: Simplify right side
    39,814.83x = 785,531,340.68
  5. Step 5: Solve for x
    x = 785,531,340.68/39,814.83
  6. Step 6: Final answer
    x = 19,729.62

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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.