Home / 23,138.32-31,928.92-13,577.22

Finding the Fourth Proportional to 23,138.32, 31,928.92 and 13,577.22

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Solution

The fourth proportional to 23,138.32, 31,928.92 and 13,577.22 is: 18,735.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,138.32 : 31,928.92 = 13,577.22 : x
  2. Step 2: Convert to fraction form
    23,138.32/31,928.92 = 13,577.22/x
  3. Step 3: Cross multiply
    23,138.32x = 31,928.92 × 13,577.22
  4. Step 4: Simplify right side
    23,138.32x = 433,505,971.20
  5. Step 5: Solve for x
    x = 433,505,971.20/23,138.32
  6. Step 6: Final answer
    x = 18,735.41

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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.