Home / 39,667.41-54,744.57-21,765.90

Finding the Fourth Proportional to 39,667.41, 54,744.57 and 21,765.90

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Solution

The fourth proportional to 39,667.41, 54,744.57 and 21,765.90 is: 30,038.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,667.41 : 54,744.57 = 21,765.90 : x
  2. Step 2: Convert to fraction form
    39,667.41/54,744.57 = 21,765.90/x
  3. Step 3: Cross multiply
    39,667.41x = 54,744.57 × 21,765.90
  4. Step 4: Simplify right side
    39,667.41x = 1,191,564,836.16
  5. Step 5: Solve for x
    x = 1,191,564,836.16/39,667.41
  6. Step 6: Final answer
    x = 30,038.89

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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.