Home / 34,721.36-47,915.70-18,806

Finding the Fourth Proportional to 34,721.36, 47,915.70 and 18,806

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Solution

The fourth proportional to 34,721.36, 47,915.70 and 18,806 is: 25,952.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,721.36 : 47,915.70 = 18,806 : x
  2. Step 2: Convert to fraction form
    34,721.36/47,915.70 = 18,806/x
  3. Step 3: Cross multiply
    34,721.36x = 47,915.70 × 18,806
  4. Step 4: Simplify right side
    34,721.36x = 901,102,654.20
  5. Step 5: Solve for x
    x = 901,102,654.20/34,721.36
  6. Step 6: Final answer
    x = 25,952.40

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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.