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Finding the Fourth Proportional to 17,511.40, 24,117.78 and 17,187.40

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Solution

The fourth proportional to 17,511.40, 24,117.78 and 17,187.40 is: 23,671.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,511.40 : 24,117.78 = 17,187.40 : x
  2. Step 2: Convert to fraction form
    17,511.40/24,117.78 = 17,187.40/x
  3. Step 3: Cross multiply
    17,511.40x = 24,117.78 × 17,187.40
  4. Step 4: Simplify right side
    17,511.40x = 414,521,931.97
  5. Step 5: Solve for x
    x = 414,521,931.97/17,511.40
  6. Step 6: Final answer
    x = 23,671.55

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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.