Home / 30,616.79-42,249.80-17,187.80

Finding the Fourth Proportional to 30,616.79, 42,249.80 and 17,187.80

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Solution

The fourth proportional to 30,616.79, 42,249.80 and 17,187.80 is: 23,718.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,616.79 : 42,249.80 = 17,187.80 : x
  2. Step 2: Convert to fraction form
    30,616.79/42,249.80 = 17,187.80/x
  3. Step 3: Cross multiply
    30,616.79x = 42,249.80 × 17,187.80
  4. Step 4: Simplify right side
    30,616.79x = 726,180,944.16
  5. Step 5: Solve for x
    x = 726,180,944.16/30,616.79
  6. Step 6: Final answer
    x = 23,718.39

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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.