Home / 21,191.58-29,249.69-12,244.28

Finding the Fourth Proportional to 21,191.58, 29,249.69 and 12,244.28

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Solution

The fourth proportional to 21,191.58, 29,249.69 and 12,244.28 is: 16,900.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,191.58 : 29,249.69 = 12,244.28 : x
  2. Step 2: Convert to fraction form
    21,191.58/29,249.69 = 12,244.28/x
  3. Step 3: Cross multiply
    21,191.58x = 29,249.69 × 12,244.28
  4. Step 4: Simplify right side
    21,191.58x = 358,141,186.80
  5. Step 5: Solve for x
    x = 358,141,186.80/21,191.58
  6. Step 6: Final answer
    x = 16,900.16

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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.