Home / 20,445.29-30,628.83-17,134.72

Finding the Fourth Proportional to 20,445.29, 30,628.83 and 17,134.72

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Solution

The fourth proportional to 20,445.29, 30,628.83 and 17,134.72 is: 25,669.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,445.29 : 30,628.83 = 17,134.72 : x
  2. Step 2: Convert to fraction form
    20,445.29/30,628.83 = 17,134.72/x
  3. Step 3: Cross multiply
    20,445.29x = 30,628.83 × 17,134.72
  4. Step 4: Simplify right side
    20,445.29x = 524,816,272.83
  5. Step 5: Solve for x
    x = 524,816,272.83/20,445.29
  6. Step 6: Final answer
    x = 25,669.30

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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.