Home / 39,590.47-54,632.73-21,682.09

Finding the Fourth Proportional to 39,590.47, 54,632.73 and 21,682.09

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Solution

The fourth proportional to 39,590.47, 54,632.73 and 21,682.09 is: 29,920.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,590.47 : 54,632.73 = 21,682.09 : x
  2. Step 2: Convert to fraction form
    39,590.47/54,632.73 = 21,682.09/x
  3. Step 3: Cross multiply
    39,590.47x = 54,632.73 × 21,682.09
  4. Step 4: Simplify right side
    39,590.47x = 1,184,551,768.81
  5. Step 5: Solve for x
    x = 1,184,551,768.81/39,590.47
  6. Step 6: Final answer
    x = 29,920.12

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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.