Home / 39,794.64-54,918.45-21,889.32

Finding the Fourth Proportional to 39,794.64, 54,918.45 and 21,889.32

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Solution

The fourth proportional to 39,794.64, 54,918.45 and 21,889.32 is: 30,208.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,794.64 : 54,918.45 = 21,889.32 : x
  2. Step 2: Convert to fraction form
    39,794.64/54,918.45 = 21,889.32/x
  3. Step 3: Cross multiply
    39,794.64x = 54,918.45 × 21,889.32
  4. Step 4: Simplify right side
    39,794.64x = 1,202,127,525.95
  5. Step 5: Solve for x
    x = 1,202,127,525.95/39,794.64
  6. Step 6: Final answer
    x = 30,208.28

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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.