Home / 19,220.76-28,847.34-7,542.18

Finding the Fourth Proportional to 19,220.76, 28,847.34 and 7,542.18

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Solution

The fourth proportional to 19,220.76, 28,847.34 and 7,542.18 is: 11,319.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,220.76 : 28,847.34 = 7,542.18 : x
  2. Step 2: Convert to fraction form
    19,220.76/28,847.34 = 7,542.18/x
  3. Step 3: Cross multiply
    19,220.76x = 28,847.34 × 7,542.18
  4. Step 4: Simplify right side
    19,220.76x = 217,571,830.80
  5. Step 5: Solve for x
    x = 217,571,830.80/19,220.76
  6. Step 6: Final answer
    x = 11,319.63

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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.