Home / 20,827.36-31,248.32-13,027.04

Finding the Fourth Proportional to 20,827.36, 31,248.32 and 13,027.04

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Solution

The fourth proportional to 20,827.36, 31,248.32 and 13,027.04 is: 19,545.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,827.36 : 31,248.32 = 13,027.04 : x
  2. Step 2: Convert to fraction form
    20,827.36/31,248.32 = 13,027.04/x
  3. Step 3: Cross multiply
    20,827.36x = 31,248.32 × 13,027.04
  4. Step 4: Simplify right side
    20,827.36x = 407,073,114.57
  5. Step 5: Solve for x
    x = 407,073,114.57/20,827.36
  6. Step 6: Final answer
    x = 19,545.11

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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.