Home / 20,412.37-30,622.14-9,320.18

Finding the Fourth Proportional to 20,412.37, 30,622.14 and 9,320.18

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Solution

The fourth proportional to 20,412.37, 30,622.14 and 9,320.18 is: 13,981.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,412.37 : 30,622.14 = 9,320.18 : x
  2. Step 2: Convert to fraction form
    20,412.37/30,622.14 = 9,320.18/x
  3. Step 3: Cross multiply
    20,412.37x = 30,622.14 × 9,320.18
  4. Step 4: Simplify right side
    20,412.37x = 285,403,902.14
  5. Step 5: Solve for x
    x = 285,403,902.14/20,412.37
  6. Step 6: Final answer
    x = 13,981.91

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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.