Home / 15,823.86-21,845.17-14,776.82

Finding the Fourth Proportional to 15,823.86, 21,845.17 and 14,776.82

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Solution

The fourth proportional to 15,823.86, 21,845.17 and 14,776.82 is: 20,399.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,823.86 : 21,845.17 = 14,776.82 : x
  2. Step 2: Convert to fraction form
    15,823.86/21,845.17 = 14,776.82/x
  3. Step 3: Cross multiply
    15,823.86x = 21,845.17 × 14,776.82
  4. Step 4: Simplify right side
    15,823.86x = 322,802,144.96
  5. Step 5: Solve for x
    x = 322,802,144.96/15,823.86
  6. Step 6: Final answer
    x = 20,399.71

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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.