Home / 21,200.46-29,257.65-12,249.15

Finding the Fourth Proportional to 21,200.46, 29,257.65 and 12,249.15

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Solution

The fourth proportional to 21,200.46, 29,257.65 and 12,249.15 is: 16,904.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,200.46 : 29,257.65 = 12,249.15 : x
  2. Step 2: Convert to fraction form
    21,200.46/29,257.65 = 12,249.15/x
  3. Step 3: Cross multiply
    21,200.46x = 29,257.65 × 12,249.15
  4. Step 4: Simplify right side
    21,200.46x = 358,381,343.50
  5. Step 5: Solve for x
    x = 358,381,343.50/21,200.46
  6. Step 6: Final answer
    x = 16,904.41

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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.