Home / 20,161.45-30,247.13-7,013.93

Finding the Fourth Proportional to 20,161.45, 30,247.13 and 7,013.93

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Solution

The fourth proportional to 20,161.45, 30,247.13 and 7,013.93 is: 10,522.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161.45 : 30,247.13 = 7,013.93 : x
  2. Step 2: Convert to fraction form
    20,161.45/30,247.13 = 7,013.93/x
  3. Step 3: Cross multiply
    20,161.45x = 30,247.13 × 7,013.93
  4. Step 4: Simplify right side
    20,161.45x = 212,151,345.67
  5. Step 5: Solve for x
    x = 212,151,345.67/20,161.45
  6. Step 6: Final answer
    x = 10,522.62

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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.