Home / 21,174.08-29,233.44-13,633.52

Finding the Fourth Proportional to 21,174.08, 29,233.44 and 13,633.52

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Solution

The fourth proportional to 21,174.08, 29,233.44 and 13,633.52 is: 18,822.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,174.08 : 29,233.44 = 13,633.52 : x
  2. Step 2: Convert to fraction form
    21,174.08/29,233.44 = 13,633.52/x
  3. Step 3: Cross multiply
    21,174.08x = 29,233.44 × 13,633.52
  4. Step 4: Simplify right side
    21,174.08x = 398,554,688.91
  5. Step 5: Solve for x
    x = 398,554,688.91/21,174.08
  6. Step 6: Final answer
    x = 18,822.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.