Home / 39,674.90-54,749.53-21,769.46

Finding the Fourth Proportional to 39,674.90, 54,749.53 and 21,769.46

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Solution

The fourth proportional to 39,674.90, 54,749.53 and 21,769.46 is: 30,040.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,674.90 : 54,749.53 = 21,769.46 : x
  2. Step 2: Convert to fraction form
    39,674.90/54,749.53 = 21,769.46/x
  3. Step 3: Cross multiply
    39,674.90x = 54,749.53 × 21,769.46
  4. Step 4: Simplify right side
    39,674.90x = 1,191,867,703.35
  5. Step 5: Solve for x
    x = 1,191,867,703.35/39,674.90
  6. Step 6: Final answer
    x = 30,040.85

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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.