Home / 20,232.62-27,920.31-12,683.01

Finding the Fourth Proportional to 20,232.62, 27,920.31 and 12,683.01

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Solution

The fourth proportional to 20,232.62, 27,920.31 and 12,683.01 is: 17,502.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,232.62 : 27,920.31 = 12,683.01 : x
  2. Step 2: Convert to fraction form
    20,232.62/27,920.31 = 12,683.01/x
  3. Step 3: Cross multiply
    20,232.62x = 27,920.31 × 12,683.01
  4. Step 4: Simplify right side
    20,232.62x = 354,113,570.93
  5. Step 5: Solve for x
    x = 354,113,570.93/20,232.62
  6. Step 6: Final answer
    x = 17,502.12

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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.