Home / 20,954.16-28,917.18-11,523.24

Finding the Fourth Proportional to 20,954.16, 28,917.18 and 11,523.24

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Solution

The fourth proportional to 20,954.16, 28,917.18 and 11,523.24 is: 15,902.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,954.16 : 28,917.18 = 11,523.24 : x
  2. Step 2: Convert to fraction form
    20,954.16/28,917.18 = 11,523.24/x
  3. Step 3: Cross multiply
    20,954.16x = 28,917.18 × 11,523.24
  4. Step 4: Simplify right side
    20,954.16x = 333,219,605.26
  5. Step 5: Solve for x
    x = 333,219,605.26/20,954.16
  6. Step 6: Final answer
    x = 15,902.31

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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.