Home / 39,814.10-59,729.78-12,111.38

Finding the Fourth Proportional to 39,814.10, 59,729.78 and 12,111.38

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Solution

The fourth proportional to 39,814.10, 59,729.78 and 12,111.38 is: 18,169.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,814.10 : 59,729.78 = 12,111.38 : x
  2. Step 2: Convert to fraction form
    39,814.10/59,729.78 = 12,111.38/x
  3. Step 3: Cross multiply
    39,814.10x = 59,729.78 × 12,111.38
  4. Step 4: Simplify right side
    39,814.10x = 723,409,794.53
  5. Step 5: Solve for x
    x = 723,409,794.53/39,814.10
  6. Step 6: Final answer
    x = 18,169.69

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.