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Finding the Fourth Proportional to 17,145, 23,636.84 and 14,653.87

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Solution

The fourth proportional to 17,145, 23,636.84 and 14,653.87 is: 20,202.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,145 : 23,636.84 = 14,653.87 : x
  2. Step 2: Convert to fraction form
    17,145/23,636.84 = 14,653.87/x
  3. Step 3: Cross multiply
    17,145x = 23,636.84 × 14,653.87
  4. Step 4: Simplify right side
    17,145x = 346,371,048.21
  5. Step 5: Solve for x
    x = 346,371,048.21/17,145
  6. Step 6: Final answer
    x = 20,202.45

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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.