Home / 21,730.92-32,541.18-18,211.68

Finding the Fourth Proportional to 21,730.92, 32,541.18 and 18,211.68

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Solution

The fourth proportional to 21,730.92, 32,541.18 and 18,211.68 is: 27,271.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,730.92 : 32,541.18 = 18,211.68 : x
  2. Step 2: Convert to fraction form
    21,730.92/32,541.18 = 18,211.68/x
  3. Step 3: Cross multiply
    21,730.92x = 32,541.18 × 18,211.68
  4. Step 4: Simplify right side
    21,730.92x = 592,629,556.98
  5. Step 5: Solve for x
    x = 592,629,556.98/21,730.92
  6. Step 6: Final answer
    x = 27,271.26

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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.