Home / 20,265.13-27,970.55-11,884.33

Finding the Fourth Proportional to 20,265.13, 27,970.55 and 11,884.33

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Solution

The fourth proportional to 20,265.13, 27,970.55 and 11,884.33 is: 16,403.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,265.13 : 27,970.55 = 11,884.33 : x
  2. Step 2: Convert to fraction form
    20,265.13/27,970.55 = 11,884.33/x
  3. Step 3: Cross multiply
    20,265.13x = 27,970.55 × 11,884.33
  4. Step 4: Simplify right side
    20,265.13x = 332,411,246.48
  5. Step 5: Solve for x
    x = 332,411,246.48/20,265.13
  6. Step 6: Final answer
    x = 16,403.11

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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.