Home / 30,435.84-42,000.66-17,007.21

Finding the Fourth Proportional to 30,435.84, 42,000.66 and 17,007.21

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Solution

The fourth proportional to 30,435.84, 42,000.66 and 17,007.21 is: 23,469.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,435.84 : 42,000.66 = 17,007.21 : x
  2. Step 2: Convert to fraction form
    30,435.84/42,000.66 = 17,007.21/x
  3. Step 3: Cross multiply
    30,435.84x = 42,000.66 × 17,007.21
  4. Step 4: Simplify right side
    30,435.84x = 714,313,986.94
  5. Step 5: Solve for x
    x = 714,313,986.94/30,435.84
  6. Step 6: Final answer
    x = 23,469.50

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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.