Home / 21,405.45-32,108.22-11,549.37

Finding the Fourth Proportional to 21,405.45, 32,108.22 and 11,549.37

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Solution

The fourth proportional to 21,405.45, 32,108.22 and 11,549.37 is: 17,324.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,405.45 : 32,108.22 = 11,549.37 : x
  2. Step 2: Convert to fraction form
    21,405.45/32,108.22 = 11,549.37/x
  3. Step 3: Cross multiply
    21,405.45x = 32,108.22 × 11,549.37
  4. Step 4: Simplify right side
    21,405.45x = 370,829,712.82
  5. Step 5: Solve for x
    x = 370,829,712.82/21,405.45
  6. Step 6: Final answer
    x = 17,324.08

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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.