Home / 30,551.99-42,157.64-17,631.75

Finding the Fourth Proportional to 30,551.99, 42,157.64 and 17,631.75

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Solution

The fourth proportional to 30,551.99, 42,157.64 and 17,631.75 is: 24,329.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,551.99 : 42,157.64 = 17,631.75 : x
  2. Step 2: Convert to fraction form
    30,551.99/42,157.64 = 17,631.75/x
  3. Step 3: Cross multiply
    30,551.99x = 42,157.64 × 17,631.75
  4. Step 4: Simplify right side
    30,551.99x = 743,313,003.08
  5. Step 5: Solve for x
    x = 743,313,003.08/30,551.99
  6. Step 6: Final answer
    x = 24,329.45

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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.