Home / 19,330.98-28,998.99-5,480.34

Finding the Fourth Proportional to 19,330.98, 28,998.99 and 5,480.34

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Solution

The fourth proportional to 19,330.98, 28,998.99 and 5,480.34 is: 8,221.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,330.98 : 28,998.99 = 5,480.34 : x
  2. Step 2: Convert to fraction form
    19,330.98/28,998.99 = 5,480.34/x
  3. Step 3: Cross multiply
    19,330.98x = 28,998.99 × 5,480.34
  4. Step 4: Simplify right side
    19,330.98x = 158,924,324.86
  5. Step 5: Solve for x
    x = 158,924,324.86/19,330.98
  6. Step 6: Final answer
    x = 8,221.22

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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.