Home / 19,031.78-28,545.62-4,993.22

Finding the Fourth Proportional to 19,031.78, 28,545.62 and 4,993.22

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Solution

The fourth proportional to 19,031.78, 28,545.62 and 4,993.22 is: 7,489.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,031.78 : 28,545.62 = 4,993.22 : x
  2. Step 2: Convert to fraction form
    19,031.78/28,545.62 = 4,993.22/x
  3. Step 3: Cross multiply
    19,031.78x = 28,545.62 × 4,993.22
  4. Step 4: Simplify right side
    19,031.78x = 142,534,644.54
  5. Step 5: Solve for x
    x = 142,534,644.54/19,031.78
  6. Step 6: Final answer
    x = 7,489.30

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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.