Home / 39,465.69-54,463.46-21,561.86

Finding the Fourth Proportional to 39,465.69, 54,463.46 and 21,561.86

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Solution

The fourth proportional to 39,465.69, 54,463.46 and 21,561.86 is: 29,755.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,465.69 : 54,463.46 = 21,561.86 : x
  2. Step 2: Convert to fraction form
    39,465.69/54,463.46 = 21,561.86/x
  3. Step 3: Cross multiply
    39,465.69x = 54,463.46 × 21,561.86
  4. Step 4: Simplify right side
    39,465.69x = 1,174,333,119.51
  5. Step 5: Solve for x
    x = 1,174,333,119.51/39,465.69
  6. Step 6: Final answer
    x = 29,755.80

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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.