Home / 25,155.99-37,680.68-17,221.28

Finding the Fourth Proportional to 25,155.99, 37,680.68 and 17,221.28

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Solution

The fourth proportional to 25,155.99, 37,680.68 and 17,221.28 is: 25,795.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,155.99 : 37,680.68 = 17,221.28 : x
  2. Step 2: Convert to fraction form
    25,155.99/37,680.68 = 17,221.28/x
  3. Step 3: Cross multiply
    25,155.99x = 37,680.68 × 17,221.28
  4. Step 4: Simplify right side
    25,155.99x = 648,909,548.97
  5. Step 5: Solve for x
    x = 648,909,548.97/25,155.99
  6. Step 6: Final answer
    x = 25,795.43

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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.