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Finding the Fourth Proportional to 69,409.82, 104,113.71 and 16,818.95

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Solution

The fourth proportional to 69,409.82, 104,113.71 and 16,818.95 is: 25,228.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,409.82 : 104,113.71 = 16,818.95 : x
  2. Step 2: Convert to fraction form
    69,409.82/104,113.71 = 16,818.95/x
  3. Step 3: Cross multiply
    69,409.82x = 104,113.71 × 16,818.95
  4. Step 4: Simplify right side
    69,409.82x = 1,751,082,762.24
  5. Step 5: Solve for x
    x = 1,751,082,762.24/69,409.82
  6. Step 6: Final answer
    x = 25,228.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.