Home / 39,069.53-53,915.87-21,164.99

Finding the Fourth Proportional to 39,069.53, 53,915.87 and 21,164.99

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Solution

The fourth proportional to 39,069.53, 53,915.87 and 21,164.99 is: 29,207.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,069.53 : 53,915.87 = 21,164.99 : x
  2. Step 2: Convert to fraction form
    39,069.53/53,915.87 = 21,164.99/x
  3. Step 3: Cross multiply
    39,069.53x = 53,915.87 × 21,164.99
  4. Step 4: Simplify right side
    39,069.53x = 1,141,128,473.99
  5. Step 5: Solve for x
    x = 1,141,128,473.99/39,069.53
  6. Step 6: Final answer
    x = 29,207.64

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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.