Home / 39,396.71-54,367.62-21,492.11

Finding the Fourth Proportional to 39,396.71, 54,367.62 and 21,492.11

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Solution

The fourth proportional to 39,396.71, 54,367.62 and 21,492.11 is: 29,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,396.71 : 54,367.62 = 21,492.11 : x
  2. Step 2: Convert to fraction form
    39,396.71/54,367.62 = 21,492.11/x
  3. Step 3: Cross multiply
    39,396.71x = 54,367.62 × 21,492.11
  4. Step 4: Simplify right side
    39,396.71x = 1,168,474,869.48
  5. Step 5: Solve for x
    x = 1,168,474,869.48/39,396.71
  6. Step 6: Final answer
    x = 29,659.20

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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.