Home / 39,830.31-54,965.39-21,924.92

Finding the Fourth Proportional to 39,830.31, 54,965.39 and 21,924.92

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Solution

The fourth proportional to 39,830.31, 54,965.39 and 21,924.92 is: 30,256.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,830.31 : 54,965.39 = 21,924.92 : x
  2. Step 2: Convert to fraction form
    39,830.31/54,965.39 = 21,924.92/x
  3. Step 3: Cross multiply
    39,830.31x = 54,965.39 × 21,924.92
  4. Step 4: Simplify right side
    39,830.31x = 1,205,111,806.31
  5. Step 5: Solve for x
    x = 1,205,111,806.31/39,830.31
  6. Step 6: Final answer
    x = 30,256.15

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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.