Home / 39,069.62-53,916.33-21,164.61

Finding the Fourth Proportional to 39,069.62, 53,916.33 and 21,164.61

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Solution

The fourth proportional to 39,069.62, 53,916.33 and 21,164.61 is: 29,207.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,069.62 : 53,916.33 = 21,164.61 : x
  2. Step 2: Convert to fraction form
    39,069.62/53,916.33 = 21,164.61/x
  3. Step 3: Cross multiply
    39,069.62x = 53,916.33 × 21,164.61
  4. Step 4: Simplify right side
    39,069.62x = 1,141,118,097.08
  5. Step 5: Solve for x
    x = 1,141,118,097.08/39,069.62
  6. Step 6: Final answer
    x = 29,207.30

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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.