Home / 30,619.84-42,252.11-17,192.56

Finding the Fourth Proportional to 30,619.84, 42,252.11 and 17,192.56

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Solution

The fourth proportional to 30,619.84, 42,252.11 and 17,192.56 is: 23,723.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,619.84 : 42,252.11 = 17,192.56 : x
  2. Step 2: Convert to fraction form
    30,619.84/42,252.11 = 17,192.56/x
  3. Step 3: Cross multiply
    30,619.84x = 42,252.11 × 17,192.56
  4. Step 4: Simplify right side
    30,619.84x = 726,421,725.04
  5. Step 5: Solve for x
    x = 726,421,725.04/30,619.84
  6. Step 6: Final answer
    x = 23,723.89

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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.