Home / 21,541.92-32,330.16-11,156.64

Finding the Fourth Proportional to 21,541.92, 32,330.16 and 11,156.64

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Solution

The fourth proportional to 21,541.92, 32,330.16 and 11,156.64 is: 16,743.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,541.92 : 32,330.16 = 11,156.64 : x
  2. Step 2: Convert to fraction form
    21,541.92/32,330.16 = 11,156.64/x
  3. Step 3: Cross multiply
    21,541.92x = 32,330.16 × 11,156.64
  4. Step 4: Simplify right side
    21,541.92x = 360,695,956.26
  5. Step 5: Solve for x
    x = 360,695,956.26/21,541.92
  6. Step 6: Final answer
    x = 16,743.91

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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.