Home / 19,031.06-28,545.90-4,990.97

Finding the Fourth Proportional to 19,031.06, 28,545.90 and 4,990.97

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Solution

The fourth proportional to 19,031.06, 28,545.90 and 4,990.97 is: 7,486.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,031.06 : 28,545.90 = 4,990.97 : x
  2. Step 2: Convert to fraction form
    19,031.06/28,545.90 = 4,990.97/x
  3. Step 3: Cross multiply
    19,031.06x = 28,545.90 × 4,990.97
  4. Step 4: Simplify right side
    19,031.06x = 142,471,730.52
  5. Step 5: Solve for x
    x = 142,471,730.52/19,031.06
  6. Step 6: Final answer
    x = 7,486.27

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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.