Home / 39,304.77-54,241.92-21,400.05

Finding the Fourth Proportional to 39,304.77, 54,241.92 and 21,400.05

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Solution

The fourth proportional to 39,304.77, 54,241.92 and 21,400.05 is: 29,532.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,304.77 : 54,241.92 = 21,400.05 : x
  2. Step 2: Convert to fraction form
    39,304.77/54,241.92 = 21,400.05/x
  3. Step 3: Cross multiply
    39,304.77x = 54,241.92 × 21,400.05
  4. Step 4: Simplify right side
    39,304.77x = 1,160,779,800.10
  5. Step 5: Solve for x
    x = 1,160,779,800.10/39,304.77
  6. Step 6: Final answer
    x = 29,532.80

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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.