Home / 39,608.20-54,659.40-21,702.82

Finding the Fourth Proportional to 39,608.20, 54,659.40 and 21,702.82

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Solution

The fourth proportional to 39,608.20, 54,659.40 and 21,702.82 is: 29,949.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,608.20 : 54,659.40 = 21,702.82 : x
  2. Step 2: Convert to fraction form
    39,608.20/54,659.40 = 21,702.82/x
  3. Step 3: Cross multiply
    39,608.20x = 54,659.40 × 21,702.82
  4. Step 4: Simplify right side
    39,608.20x = 1,186,263,119.51
  5. Step 5: Solve for x
    x = 1,186,263,119.51/39,608.20
  6. Step 6: Final answer
    x = 29,949.94

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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.