Home / 39,803.10-54,926.29-21,897.64

Finding the Fourth Proportional to 39,803.10, 54,926.29 and 21,897.64

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Solution

The fourth proportional to 39,803.10, 54,926.29 and 21,897.64 is: 30,217.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,803.10 : 54,926.29 = 21,897.64 : x
  2. Step 2: Convert to fraction form
    39,803.10/54,926.29 = 21,897.64/x
  3. Step 3: Cross multiply
    39,803.10x = 54,926.29 × 21,897.64
  4. Step 4: Simplify right side
    39,803.10x = 1,202,756,124.96
  5. Step 5: Solve for x
    x = 1,202,756,124.96/39,803.10
  6. Step 6: Final answer
    x = 30,217.65

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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.