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Finding the Fourth Proportional to 34,680, 47,858.49 and 18,764.58

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Solution

The fourth proportional to 34,680, 47,858.49 and 18,764.58 is: 25,895.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,680 : 47,858.49 = 18,764.58 : x
  2. Step 2: Convert to fraction form
    34,680/47,858.49 = 18,764.58/x
  3. Step 3: Cross multiply
    34,680x = 47,858.49 × 18,764.58
  4. Step 4: Simplify right side
    34,680x = 898,044,464.28
  5. Step 5: Solve for x
    x = 898,044,464.28/34,680
  6. Step 6: Final answer
    x = 25,895.17

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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.