Home / 20,222.10-30,320.19-8,532.18

Finding the Fourth Proportional to 20,222.10, 30,320.19 and 8,532.18

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Solution

The fourth proportional to 20,222.10, 30,320.19 and 8,532.18 is: 12,792.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,222.10 : 30,320.19 = 8,532.18 : x
  2. Step 2: Convert to fraction form
    20,222.10/30,320.19 = 8,532.18/x
  3. Step 3: Cross multiply
    20,222.10x = 30,320.19 × 8,532.18
  4. Step 4: Simplify right side
    20,222.10x = 258,697,318.71
  5. Step 5: Solve for x
    x = 258,697,318.71/20,222.10
  6. Step 6: Final answer
    x = 12,792.80

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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.