Home / 20,325.73-28,048.18-11,371.69

Finding the Fourth Proportional to 20,325.73, 28,048.18 and 11,371.69

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Solution

The fourth proportional to 20,325.73, 28,048.18 and 11,371.69 is: 15,692.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,325.73 : 28,048.18 = 11,371.69 : x
  2. Step 2: Convert to fraction form
    20,325.73/28,048.18 = 11,371.69/x
  3. Step 3: Cross multiply
    20,325.73x = 28,048.18 × 11,371.69
  4. Step 4: Simplify right side
    20,325.73x = 318,955,208.02
  5. Step 5: Solve for x
    x = 318,955,208.02/20,325.73
  6. Step 6: Final answer
    x = 15,692.19

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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.