Home / 20,360.07-28,097.44-11,407.37

Finding the Fourth Proportional to 20,360.07, 28,097.44 and 11,407.37

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Solution

The fourth proportional to 20,360.07, 28,097.44 and 11,407.37 is: 15,742.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,360.07 : 28,097.44 = 11,407.37 : x
  2. Step 2: Convert to fraction form
    20,360.07/28,097.44 = 11,407.37/x
  3. Step 3: Cross multiply
    20,360.07x = 28,097.44 × 11,407.37
  4. Step 4: Simplify right side
    20,360.07x = 320,517,894.13
  5. Step 5: Solve for x
    x = 320,517,894.13/20,360.07
  6. Step 6: Final answer
    x = 15,742.48

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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.