Home / 21,193.66-29,245.89-13,235.41

Finding the Fourth Proportional to 21,193.66, 29,245.89 and 13,235.41

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Solution

The fourth proportional to 21,193.66, 29,245.89 and 13,235.41 is: 18,264.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,193.66 : 29,245.89 = 13,235.41 : x
  2. Step 2: Convert to fraction form
    21,193.66/29,245.89 = 13,235.41/x
  3. Step 3: Cross multiply
    21,193.66x = 29,245.89 × 13,235.41
  4. Step 4: Simplify right side
    21,193.66x = 387,081,344.96
  5. Step 5: Solve for x
    x = 387,081,344.96/21,193.66
  6. Step 6: Final answer
    x = 18,264.02

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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.