Home / 30,876.79-42,616.97-17,455.84

Finding the Fourth Proportional to 30,876.79, 42,616.97 and 17,455.84

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Solution

The fourth proportional to 30,876.79, 42,616.97 and 17,455.84 is: 24,093.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,876.79 : 42,616.97 = 17,455.84 : x
  2. Step 2: Convert to fraction form
    30,876.79/42,616.97 = 17,455.84/x
  3. Step 3: Cross multiply
    30,876.79x = 42,616.97 × 17,455.84
  4. Step 4: Simplify right side
    30,876.79x = 743,915,009.60
  5. Step 5: Solve for x
    x = 743,915,009.60/30,876.79
  6. Step 6: Final answer
    x = 24,093.02

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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.