Home / 21,295.86-29,376.72-13,336.44

Finding the Fourth Proportional to 21,295.86, 29,376.72 and 13,336.44

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Solution

The fourth proportional to 21,295.86, 29,376.72 and 13,336.44 is: 18,397.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,295.86 : 29,376.72 = 13,336.44 : x
  2. Step 2: Convert to fraction form
    21,295.86/29,376.72 = 13,336.44/x
  3. Step 3: Cross multiply
    21,295.86x = 29,376.72 × 13,336.44
  4. Step 4: Simplify right side
    21,295.86x = 391,780,863.68
  5. Step 5: Solve for x
    x = 391,780,863.68/21,295.86
  6. Step 6: Final answer
    x = 18,397.04

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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.