Home / 20,325.24-28,057.68-12,369.96

Finding the Fourth Proportional to 20,325.24, 28,057.68 and 12,369.96

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Solution

The fourth proportional to 20,325.24, 28,057.68 and 12,369.96 is: 17,075.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,325.24 : 28,057.68 = 12,369.96 : x
  2. Step 2: Convert to fraction form
    20,325.24/28,057.68 = 12,369.96/x
  3. Step 3: Cross multiply
    20,325.24x = 28,057.68 × 12,369.96
  4. Step 4: Simplify right side
    20,325.24x = 347,072,379.29
  5. Step 5: Solve for x
    x = 347,072,379.29/20,325.24
  6. Step 6: Final answer
    x = 17,075.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.