Home / 21,502.08-32,262.40-11,121.12

Finding the Fourth Proportional to 21,502.08, 32,262.40 and 11,121.12

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Solution

The fourth proportional to 21,502.08, 32,262.40 and 11,121.12 is: 16,686.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,502.08 : 32,262.40 = 11,121.12 : x
  2. Step 2: Convert to fraction form
    21,502.08/32,262.40 = 11,121.12/x
  3. Step 3: Cross multiply
    21,502.08x = 32,262.40 × 11,121.12
  4. Step 4: Simplify right side
    21,502.08x = 358,794,021.89
  5. Step 5: Solve for x
    x = 358,794,021.89/21,502.08
  6. Step 6: Final answer
    x = 16,686.48

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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.