Home / 30,599.66-42,228.30-17,171.99

Finding the Fourth Proportional to 30,599.66, 42,228.30 and 17,171.99

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Solution

The fourth proportional to 30,599.66, 42,228.30 and 17,171.99 is: 23,697.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,599.66 : 42,228.30 = 17,171.99 : x
  2. Step 2: Convert to fraction form
    30,599.66/42,228.30 = 17,171.99/x
  3. Step 3: Cross multiply
    30,599.66x = 42,228.30 × 17,171.99
  4. Step 4: Simplify right side
    30,599.66x = 725,143,945.32
  5. Step 5: Solve for x
    x = 725,143,945.32/30,599.66
  6. Step 6: Final answer
    x = 23,697.78

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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.