Home / 20,215.96-27,897.32-11,263.04

Finding the Fourth Proportional to 20,215.96, 27,897.32 and 11,263.04

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Solution

The fourth proportional to 20,215.96, 27,897.32 and 11,263.04 is: 15,542.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215.96 : 27,897.32 = 11,263.04 : x
  2. Step 2: Convert to fraction form
    20,215.96/27,897.32 = 11,263.04/x
  3. Step 3: Cross multiply
    20,215.96x = 27,897.32 × 11,263.04
  4. Step 4: Simplify right side
    20,215.96x = 314,208,631.05
  5. Step 5: Solve for x
    x = 314,208,631.05/20,215.96
  6. Step 6: Final answer
    x = 15,542.60

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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.