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Finding the Fourth Proportional to 34,679.63, 47,858.28 and 18,764.39

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Solution

The fourth proportional to 34,679.63, 47,858.28 and 18,764.39 is: 25,895.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,679.63 : 47,858.28 = 18,764.39 : x
  2. Step 2: Convert to fraction form
    34,679.63/47,858.28 = 18,764.39/x
  3. Step 3: Cross multiply
    34,679.63x = 47,858.28 × 18,764.39
  4. Step 4: Simplify right side
    34,679.63x = 898,031,430.65
  5. Step 5: Solve for x
    x = 898,031,430.65/34,679.63
  6. Step 6: Final answer
    x = 25,895.07

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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.