Home / 20,053.96-27,662.35-12,881.46

Finding the Fourth Proportional to 20,053.96, 27,662.35 and 12,881.46

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Solution

The fourth proportional to 20,053.96, 27,662.35 and 12,881.46 is: 17,768.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,053.96 : 27,662.35 = 12,881.46 : x
  2. Step 2: Convert to fraction form
    20,053.96/27,662.35 = 12,881.46/x
  3. Step 3: Cross multiply
    20,053.96x = 27,662.35 × 12,881.46
  4. Step 4: Simplify right side
    20,053.96x = 356,331,316.72
  5. Step 5: Solve for x
    x = 356,331,316.72/20,053.96
  6. Step 6: Final answer
    x = 17,768.63

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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.