Home / 21,465.91-29,624.66-11,906.74

Finding the Fourth Proportional to 21,465.91, 29,624.66 and 11,906.74

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Solution

The fourth proportional to 21,465.91, 29,624.66 and 11,906.74 is: 16,432.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,465.91 : 29,624.66 = 11,906.74 : x
  2. Step 2: Convert to fraction form
    21,465.91/29,624.66 = 11,906.74/x
  3. Step 3: Cross multiply
    21,465.91x = 29,624.66 × 11,906.74
  4. Step 4: Simplify right side
    21,465.91x = 352,733,124.21
  5. Step 5: Solve for x
    x = 352,733,124.21/21,465.91
  6. Step 6: Final answer
    x = 16,432.25

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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.