Home / 20,155.75-30,233.65-7,008.14

Finding the Fourth Proportional to 20,155.75, 30,233.65 and 7,008.14

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Solution

The fourth proportional to 20,155.75, 30,233.65 and 7,008.14 is: 10,512.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155.75 : 30,233.65 = 7,008.14 : x
  2. Step 2: Convert to fraction form
    20,155.75/30,233.65 = 7,008.14/x
  3. Step 3: Cross multiply
    20,155.75x = 30,233.65 × 7,008.14
  4. Step 4: Simplify right side
    20,155.75x = 211,881,651.91
  5. Step 5: Solve for x
    x = 211,881,651.91/20,155.75
  6. Step 6: Final answer
    x = 10,512.22

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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.