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Finding the Fourth Proportional to 34,738, 47,938.48 and 18,822.56

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Solution

The fourth proportional to 34,738, 47,938.48 and 18,822.56 is: 25,975.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,738 : 47,938.48 = 18,822.56 : x
  2. Step 2: Convert to fraction form
    34,738/47,938.48 = 18,822.56/x
  3. Step 3: Cross multiply
    34,738x = 47,938.48 × 18,822.56
  4. Step 4: Simplify right side
    34,738x = 902,324,916.11
  5. Step 5: Solve for x
    x = 902,324,916.11/34,738
  6. Step 6: Final answer
    x = 25,975.15

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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.