Home / 20,105.05-30,117.23-9,585.24

Finding the Fourth Proportional to 20,105.05, 30,117.23 and 9,585.24

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Solution

The fourth proportional to 20,105.05, 30,117.23 and 9,585.24 is: 14,358.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,105.05 : 30,117.23 = 9,585.24 : x
  2. Step 2: Convert to fraction form
    20,105.05/30,117.23 = 9,585.24/x
  3. Step 3: Cross multiply
    20,105.05x = 30,117.23 × 9,585.24
  4. Step 4: Simplify right side
    20,105.05x = 288,680,877.69
  5. Step 5: Solve for x
    x = 288,680,877.69/20,105.05
  6. Step 6: Final answer
    x = 14,358.63

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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.