Home / 21,543.86-29,727.27-12,110.60

Finding the Fourth Proportional to 21,543.86, 29,727.27 and 12,110.60

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Solution

The fourth proportional to 21,543.86, 29,727.27 and 12,110.60 is: 16,710.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,543.86 : 29,727.27 = 12,110.60 : x
  2. Step 2: Convert to fraction form
    21,543.86/29,727.27 = 12,110.60/x
  3. Step 3: Cross multiply
    21,543.86x = 29,727.27 × 12,110.60
  4. Step 4: Simplify right side
    21,543.86x = 360,014,927.43
  5. Step 5: Solve for x
    x = 360,014,927.43/21,543.86
  6. Step 6: Final answer
    x = 16,710.79

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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.