Home / 39,657.66-54,725.67-21,749.34

Finding the Fourth Proportional to 39,657.66, 54,725.67 and 21,749.34

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Solution

The fourth proportional to 39,657.66, 54,725.67 and 21,749.34 is: 30,013.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,657.66 : 54,725.67 = 21,749.34 : x
  2. Step 2: Convert to fraction form
    39,657.66/54,725.67 = 21,749.34/x
  3. Step 3: Cross multiply
    39,657.66x = 54,725.67 × 21,749.34
  4. Step 4: Simplify right side
    39,657.66x = 1,190,247,203.56
  5. Step 5: Solve for x
    x = 1,190,247,203.56/39,657.66
  6. Step 6: Final answer
    x = 30,013.05

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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.