Home / 19,480.88-29,221.55-5,440.05

Finding the Fourth Proportional to 19,480.88, 29,221.55 and 5,440.05

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Solution

The fourth proportional to 19,480.88, 29,221.55 and 5,440.05 is: 8,160.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,480.88 : 29,221.55 = 5,440.05 : x
  2. Step 2: Convert to fraction form
    19,480.88/29,221.55 = 5,440.05/x
  3. Step 3: Cross multiply
    19,480.88x = 29,221.55 × 5,440.05
  4. Step 4: Simplify right side
    19,480.88x = 158,966,665.88
  5. Step 5: Solve for x
    x = 158,966,665.88/19,480.88
  6. Step 6: Final answer
    x = 8,160.14

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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.