Home / 19,029.08-28,545.20-4,989.08

Finding the Fourth Proportional to 19,029.08, 28,545.20 and 4,989.08

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Solution

The fourth proportional to 19,029.08, 28,545.20 and 4,989.08 is: 7,484.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,029.08 : 28,545.20 = 4,989.08 : x
  2. Step 2: Convert to fraction form
    19,029.08/28,545.20 = 4,989.08/x
  3. Step 3: Cross multiply
    19,029.08x = 28,545.20 × 4,989.08
  4. Step 4: Simplify right side
    19,029.08x = 142,414,286.42
  5. Step 5: Solve for x
    x = 142,414,286.42/19,029.08
  6. Step 6: Final answer
    x = 7,484.03

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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.