Home / 20,542.26-28,348.32-11,110.82

Finding the Fourth Proportional to 20,542.26, 28,348.32 and 11,110.82

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Solution

The fourth proportional to 20,542.26, 28,348.32 and 11,110.82 is: 15,332.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,542.26 : 28,348.32 = 11,110.82 : x
  2. Step 2: Convert to fraction form
    20,542.26/28,348.32 = 11,110.82/x
  3. Step 3: Cross multiply
    20,542.26x = 28,348.32 × 11,110.82
  4. Step 4: Simplify right side
    20,542.26x = 314,973,080.82
  5. Step 5: Solve for x
    x = 314,973,080.82/20,542.26
  6. Step 6: Final answer
    x = 15,332.93

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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.