Home / 20,325.42-28,045.71-11,943.54

Finding the Fourth Proportional to 20,325.42, 28,045.71 and 11,943.54

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Solution

The fourth proportional to 20,325.42, 28,045.71 and 11,943.54 is: 16,480.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,325.42 : 28,045.71 = 11,943.54 : x
  2. Step 2: Convert to fraction form
    20,325.42/28,045.71 = 11,943.54/x
  3. Step 3: Cross multiply
    20,325.42x = 28,045.71 × 11,943.54
  4. Step 4: Simplify right side
    20,325.42x = 334,965,059.21
  5. Step 5: Solve for x
    x = 334,965,059.21/20,325.42
  6. Step 6: Final answer
    x = 16,480.11

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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.