Home / 39,594.71-54,640.72-21,690.36

Finding the Fourth Proportional to 39,594.71, 54,640.72 and 21,690.36

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Solution

The fourth proportional to 39,594.71, 54,640.72 and 21,690.36 is: 29,932.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,594.71 : 54,640.72 = 21,690.36 : x
  2. Step 2: Convert to fraction form
    39,594.71/54,640.72 = 21,690.36/x
  3. Step 3: Cross multiply
    39,594.71x = 54,640.72 × 21,690.36
  4. Step 4: Simplify right side
    39,594.71x = 1,185,176,833.23
  5. Step 5: Solve for x
    x = 1,185,176,833.23/39,594.71
  6. Step 6: Final answer
    x = 29,932.70

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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.