Home / 39,673.66-54,750.19-21,768.34

Finding the Fourth Proportional to 39,673.66, 54,750.19 and 21,768.34

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Solution

The fourth proportional to 39,673.66, 54,750.19 and 21,768.34 is: 30,040.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,673.66 : 54,750.19 = 21,768.34 : x
  2. Step 2: Convert to fraction form
    39,673.66/54,750.19 = 21,768.34/x
  3. Step 3: Cross multiply
    39,673.66x = 54,750.19 × 21,768.34
  4. Step 4: Simplify right side
    39,673.66x = 1,191,820,750.98
  5. Step 5: Solve for x
    x = 1,191,820,750.98/39,673.66
  6. Step 6: Final answer
    x = 30,040.61

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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.