Home / 22,131.15-30,538.80-13,056.32

Finding the Fourth Proportional to 22,131.15, 30,538.80 and 13,056.32

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Solution

The fourth proportional to 22,131.15, 30,538.80 and 13,056.32 is: 18,016.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,131.15 : 30,538.80 = 13,056.32 : x
  2. Step 2: Convert to fraction form
    22,131.15/30,538.80 = 13,056.32/x
  3. Step 3: Cross multiply
    22,131.15x = 30,538.80 × 13,056.32
  4. Step 4: Simplify right side
    22,131.15x = 398,724,345.22
  5. Step 5: Solve for x
    x = 398,724,345.22/22,131.15
  6. Step 6: Final answer
    x = 18,016.43

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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.