Home / 20,196.30-27,875.54-13,110.42

Finding the Fourth Proportional to 20,196.30, 27,875.54 and 13,110.42

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Solution

The fourth proportional to 20,196.30, 27,875.54 and 13,110.42 is: 18,095.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,196.30 : 27,875.54 = 13,110.42 : x
  2. Step 2: Convert to fraction form
    20,196.30/27,875.54 = 13,110.42/x
  3. Step 3: Cross multiply
    20,196.30x = 27,875.54 × 13,110.42
  4. Step 4: Simplify right side
    20,196.30x = 365,460,174.44
  5. Step 5: Solve for x
    x = 365,460,174.44/20,196.30
  6. Step 6: Final answer
    x = 18,095.40

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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.