Home / 39,582.64-54,622.10-21,677.72

Finding the Fourth Proportional to 39,582.64, 54,622.10 and 21,677.72

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Solution

The fourth proportional to 39,582.64, 54,622.10 and 21,677.72 is: 29,914.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,582.64 : 54,622.10 = 21,677.72 : x
  2. Step 2: Convert to fraction form
    39,582.64/54,622.10 = 21,677.72/x
  3. Step 3: Cross multiply
    39,582.64x = 54,622.10 × 21,677.72
  4. Step 4: Simplify right side
    39,582.64x = 1,184,082,481.22
  5. Step 5: Solve for x
    x = 1,184,082,481.22/39,582.64
  6. Step 6: Final answer
    x = 29,914.19

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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.