Home / 39,582.51-54,622.89-21,678.27

Finding the Fourth Proportional to 39,582.51, 54,622.89 and 21,678.27

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Solution

The fourth proportional to 39,582.51, 54,622.89 and 21,678.27 is: 29,915.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,582.51 : 54,622.89 = 21,678.27 : x
  2. Step 2: Convert to fraction form
    39,582.51/54,622.89 = 21,678.27/x
  3. Step 3: Cross multiply
    39,582.51x = 54,622.89 × 21,678.27
  4. Step 4: Simplify right side
    39,582.51x = 1,184,129,757.60
  5. Step 5: Solve for x
    x = 1,184,129,757.60/39,582.51
  6. Step 6: Final answer
    x = 29,915.48

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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.