Home / 20,352.21-30,532.95-7,872.27

Finding the Fourth Proportional to 20,352.21, 30,532.95 and 7,872.27

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Solution

The fourth proportional to 20,352.21, 30,532.95 and 7,872.27 is: 11,810.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,352.21 : 30,532.95 = 7,872.27 : x
  2. Step 2: Convert to fraction form
    20,352.21/30,532.95 = 7,872.27/x
  3. Step 3: Cross multiply
    20,352.21x = 30,532.95 × 7,872.27
  4. Step 4: Simplify right side
    20,352.21x = 240,363,626.30
  5. Step 5: Solve for x
    x = 240,363,626.30/20,352.21
  6. Step 6: Final answer
    x = 11,810.20

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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.