Home / 20,537.28-30,794.40-13,972.32

Finding the Fourth Proportional to 20,537.28, 30,794.40 and 13,972.32

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Solution

The fourth proportional to 20,537.28, 30,794.40 and 13,972.32 is: 20,950.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,537.28 : 30,794.40 = 13,972.32 : x
  2. Step 2: Convert to fraction form
    20,537.28/30,794.40 = 13,972.32/x
  3. Step 3: Cross multiply
    20,537.28x = 30,794.40 × 13,972.32
  4. Step 4: Simplify right side
    20,537.28x = 430,269,211.01
  5. Step 5: Solve for x
    x = 430,269,211.01/20,537.28
  6. Step 6: Final answer
    x = 20,950.64

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1.5x scale

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.