Home / 39,300.98-54,236.48-21,396.28

Finding the Fourth Proportional to 39,300.98, 54,236.48 and 21,396.28

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Solution

The fourth proportional to 39,300.98, 54,236.48 and 21,396.28 is: 29,527.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,300.98 : 54,236.48 = 21,396.28 : x
  2. Step 2: Convert to fraction form
    39,300.98/54,236.48 = 21,396.28/x
  3. Step 3: Cross multiply
    39,300.98x = 54,236.48 × 21,396.28
  4. Step 4: Simplify right side
    39,300.98x = 1,160,458,912.29
  5. Step 5: Solve for x
    x = 1,160,458,912.29/39,300.98
  6. Step 6: Final answer
    x = 29,527.48

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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.