Home / 34,695.72-47,880.36-18,780.48

Finding the Fourth Proportional to 34,695.72, 47,880.36 and 18,780.48

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Solution

The fourth proportional to 34,695.72, 47,880.36 and 18,780.48 is: 25,917.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,695.72 : 47,880.36 = 18,780.48 : x
  2. Step 2: Convert to fraction form
    34,695.72/47,880.36 = 18,780.48/x
  3. Step 3: Cross multiply
    34,695.72x = 47,880.36 × 18,780.48
  4. Step 4: Simplify right side
    34,695.72x = 899,216,143.37
  5. Step 5: Solve for x
    x = 899,216,143.37/34,695.72
  6. Step 6: Final answer
    x = 25,917.21

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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.