Home / 20,745.23-31,074.08-14,085.81

Finding the Fourth Proportional to 20,745.23, 31,074.08 and 14,085.81

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Solution

The fourth proportional to 20,745.23, 31,074.08 and 14,085.81 is: 21,099.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,745.23 : 31,074.08 = 14,085.81 : x
  2. Step 2: Convert to fraction form
    20,745.23/31,074.08 = 14,085.81/x
  3. Step 3: Cross multiply
    20,745.23x = 31,074.08 × 14,085.81
  4. Step 4: Simplify right side
    20,745.23x = 437,703,516.38
  5. Step 5: Solve for x
    x = 437,703,516.38/20,745.23
  6. Step 6: Final answer
    x = 21,099.00

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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.