Home / 39,597.91-54,645.12-21,693.56

Finding the Fourth Proportional to 39,597.91, 54,645.12 and 21,693.56

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Solution

The fourth proportional to 39,597.91, 54,645.12 and 21,693.56 is: 29,937.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,597.91 : 54,645.12 = 21,693.56 : x
  2. Step 2: Convert to fraction form
    39,597.91/54,645.12 = 21,693.56/x
  3. Step 3: Cross multiply
    39,597.91x = 54,645.12 × 21,693.56
  4. Step 4: Simplify right side
    39,597.91x = 1,185,446,916.20
  5. Step 5: Solve for x
    x = 1,185,446,916.20/39,597.91
  6. Step 6: Final answer
    x = 29,937.11

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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.