Home / 39,673.89-54,749.57-21,768.93

Finding the Fourth Proportional to 39,673.89, 54,749.57 and 21,768.93

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Solution

The fourth proportional to 39,673.89, 54,749.57 and 21,768.93 is: 30,040.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,673.89 : 54,749.57 = 21,768.93 : x
  2. Step 2: Convert to fraction form
    39,673.89/54,749.57 = 21,768.93/x
  3. Step 3: Cross multiply
    39,673.89x = 54,749.57 × 21,768.93
  4. Step 4: Simplify right side
    39,673.89x = 1,191,839,448.02
  5. Step 5: Solve for x
    x = 1,191,839,448.02/39,673.89
  6. Step 6: Final answer
    x = 30,040.90

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1.5x scale

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.