Home / 22,631.96-31,232.31-13,685.44

Finding the Fourth Proportional to 22,631.96, 31,232.31 and 13,685.44

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Solution

The fourth proportional to 22,631.96, 31,232.31 and 13,685.44 is: 18,886.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,631.96 : 31,232.31 = 13,685.44 : x
  2. Step 2: Convert to fraction form
    22,631.96/31,232.31 = 13,685.44/x
  3. Step 3: Cross multiply
    22,631.96x = 31,232.31 × 13,685.44
  4. Step 4: Simplify right side
    22,631.96x = 427,427,904.57
  5. Step 5: Solve for x
    x = 427,427,904.57/22,631.96
  6. Step 6: Final answer
    x = 18,886.03

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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.