Home / 20,726.34-28,601.32-11,772.66

Finding the Fourth Proportional to 20,726.34, 28,601.32 and 11,772.66

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Solution

The fourth proportional to 20,726.34, 28,601.32 and 11,772.66 is: 16,245.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,726.34 : 28,601.32 = 11,772.66 : x
  2. Step 2: Convert to fraction form
    20,726.34/28,601.32 = 11,772.66/x
  3. Step 3: Cross multiply
    20,726.34x = 28,601.32 × 11,772.66
  4. Step 4: Simplify right side
    20,726.34x = 336,713,615.91
  5. Step 5: Solve for x
    x = 336,713,615.91/20,726.34
  6. Step 6: Final answer
    x = 16,245.69

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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.