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Finding the Fourth Proportional to 56,016.68, 84,026.64 and 20,949.64

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Solution

The fourth proportional to 56,016.68, 84,026.64 and 20,949.64 is: 31,425.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,016.68 : 84,026.64 = 20,949.64 : x
  2. Step 2: Convert to fraction form
    56,016.68/84,026.64 = 20,949.64/x
  3. Step 3: Cross multiply
    56,016.68x = 84,026.64 × 20,949.64
  4. Step 4: Simplify right side
    56,016.68x = 1,760,327,858.41
  5. Step 5: Solve for x
    x = 1,760,327,858.41/56,016.68
  6. Step 6: Final answer
    x = 31,425.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.