Home / 39,327.05-54,272.32-21,423.01

Finding the Fourth Proportional to 39,327.05, 54,272.32 and 21,423.01

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Solution

The fourth proportional to 39,327.05, 54,272.32 and 21,423.01 is: 29,564.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,327.05 : 54,272.32 = 21,423.01 : x
  2. Step 2: Convert to fraction form
    39,327.05/54,272.32 = 21,423.01/x
  3. Step 3: Cross multiply
    39,327.05x = 54,272.32 × 21,423.01
  4. Step 4: Simplify right side
    39,327.05x = 1,162,676,454.08
  5. Step 5: Solve for x
    x = 1,162,676,454.08/39,327.05
  6. Step 6: Final answer
    x = 29,564.29

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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.