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Finding the Fourth Proportional to 17,117.04, 25,640.70 and 13,965.70

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Solution

The fourth proportional to 17,117.04, 25,640.70 and 13,965.70 is: 20,920.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,117.04 : 25,640.70 = 13,965.70 : x
  2. Step 2: Convert to fraction form
    17,117.04/25,640.70 = 13,965.70/x
  3. Step 3: Cross multiply
    17,117.04x = 25,640.70 × 13,965.70
  4. Step 4: Simplify right side
    17,117.04x = 358,090,323.99
  5. Step 5: Solve for x
    x = 358,090,323.99/17,117.04
  6. Step 6: Final answer
    x = 20,920.11

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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.