Home / 20,330.81-30,499.13-6,292.07

Finding the Fourth Proportional to 20,330.81, 30,499.13 and 6,292.07

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Solution

The fourth proportional to 20,330.81, 30,499.13 and 6,292.07 is: 9,439.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,330.81 : 30,499.13 = 6,292.07 : x
  2. Step 2: Convert to fraction form
    20,330.81/30,499.13 = 6,292.07/x
  3. Step 3: Cross multiply
    20,330.81x = 30,499.13 × 6,292.07
  4. Step 4: Simplify right side
    20,330.81x = 191,902,660.90
  5. Step 5: Solve for x
    x = 191,902,660.90/20,330.81
  6. Step 6: Final answer
    x = 9,439.01

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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.