Home / 20,117.76-30,195.24-10,264.36

Finding the Fourth Proportional to 20,117.76, 30,195.24 and 10,264.36

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Solution

The fourth proportional to 20,117.76, 30,195.24 and 10,264.36 is: 15,406.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,117.76 : 30,195.24 = 10,264.36 : x
  2. Step 2: Convert to fraction form
    20,117.76/30,195.24 = 10,264.36/x
  3. Step 3: Cross multiply
    20,117.76x = 30,195.24 × 10,264.36
  4. Step 4: Simplify right side
    20,117.76x = 309,934,813.65
  5. Step 5: Solve for x
    x = 309,934,813.65/20,117.76
  6. Step 6: Final answer
    x = 15,406.03

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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.