Home / 39,396.23-54,366.96-21,491.61

Finding the Fourth Proportional to 39,396.23, 54,366.96 and 21,491.61

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Solution

The fourth proportional to 39,396.23, 54,366.96 and 21,491.61 is: 29,658.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,396.23 : 54,366.96 = 21,491.61 : x
  2. Step 2: Convert to fraction form
    39,396.23/54,366.96 = 21,491.61/x
  3. Step 3: Cross multiply
    39,396.23x = 54,366.96 × 21,491.61
  4. Step 4: Simplify right side
    39,396.23x = 1,168,433,420.61
  5. Step 5: Solve for x
    x = 1,168,433,420.61/39,396.23
  6. Step 6: Final answer
    x = 29,658.51

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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.