Home / 39,802.21-54,926.45-21,896.15

Finding the Fourth Proportional to 39,802.21, 54,926.45 and 21,896.15

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Solution

The fourth proportional to 39,802.21, 54,926.45 and 21,896.15 is: 30,216.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,802.21 : 54,926.45 = 21,896.15 : x
  2. Step 2: Convert to fraction form
    39,802.21/54,926.45 = 21,896.15/x
  3. Step 3: Cross multiply
    39,802.21x = 54,926.45 × 21,896.15
  4. Step 4: Simplify right side
    39,802.21x = 1,202,677,678.69
  5. Step 5: Solve for x
    x = 1,202,677,678.69/39,802.21
  6. Step 6: Final answer
    x = 30,216.36

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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.