Home / 39,067.28-53,912.84-21,162.40

Finding the Fourth Proportional to 39,067.28, 53,912.84 and 21,162.40

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Solution

The fourth proportional to 39,067.28, 53,912.84 and 21,162.40 is: 29,204.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,067.28 : 53,912.84 = 21,162.40 : x
  2. Step 2: Convert to fraction form
    39,067.28/53,912.84 = 21,162.40/x
  3. Step 3: Cross multiply
    39,067.28x = 53,912.84 × 21,162.40
  4. Step 4: Simplify right side
    39,067.28x = 1,140,925,085.22
  5. Step 5: Solve for x
    x = 1,140,925,085.22/39,067.28
  6. Step 6: Final answer
    x = 29,204.11

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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.