Home / 39,111.83-53,974.58-21,207.11

Finding the Fourth Proportional to 39,111.83, 53,974.58 and 21,207.11

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Solution

The fourth proportional to 39,111.83, 53,974.58 and 21,207.11 is: 29,265.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,111.83 : 53,974.58 = 21,207.11 : x
  2. Step 2: Convert to fraction form
    39,111.83/53,974.58 = 21,207.11/x
  3. Step 3: Cross multiply
    39,111.83x = 53,974.58 × 21,207.11
  4. Step 4: Simplify right side
    39,111.83x = 1,144,644,855.26
  5. Step 5: Solve for x
    x = 1,144,644,855.26/39,111.83
  6. Step 6: Final answer
    x = 29,265.95

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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.