Home / 34,743.89-47,946.38-18,828.20

Finding the Fourth Proportional to 34,743.89, 47,946.38 and 18,828.20

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Solution

The fourth proportional to 34,743.89, 47,946.38 and 18,828.20 is: 25,982.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,743.89 : 47,946.38 = 18,828.20 : x
  2. Step 2: Convert to fraction form
    34,743.89/47,946.38 = 18,828.20/x
  3. Step 3: Cross multiply
    34,743.89x = 47,946.38 × 18,828.20
  4. Step 4: Simplify right side
    34,743.89x = 902,743,698.04
  5. Step 5: Solve for x
    x = 902,743,698.04/34,743.89
  6. Step 6: Final answer
    x = 25,982.81

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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.