Home / 21,647.22-29,852.46-13,150.74

Finding the Fourth Proportional to 21,647.22, 29,852.46 and 13,150.74

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Solution

The fourth proportional to 21,647.22, 29,852.46 and 13,150.74 is: 18,135.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,647.22 : 29,852.46 = 13,150.74 : x
  2. Step 2: Convert to fraction form
    21,647.22/29,852.46 = 13,150.74/x
  3. Step 3: Cross multiply
    21,647.22x = 29,852.46 × 13,150.74
  4. Step 4: Simplify right side
    21,647.22x = 392,581,939.82
  5. Step 5: Solve for x
    x = 392,581,939.82/21,647.22
  6. Step 6: Final answer
    x = 18,135.44

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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.