Home / 30,619.90-42,252.19-17,192.63

Finding the Fourth Proportional to 30,619.90, 42,252.19 and 17,192.63

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Solution

The fourth proportional to 30,619.90, 42,252.19 and 17,192.63 is: 23,723.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,619.90 : 42,252.19 = 17,192.63 : x
  2. Step 2: Convert to fraction form
    30,619.90/42,252.19 = 17,192.63/x
  3. Step 3: Cross multiply
    30,619.90x = 42,252.19 × 17,192.63
  4. Step 4: Simplify right side
    30,619.90x = 726,426,015.12
  5. Step 5: Solve for x
    x = 726,426,015.12/30,619.90
  6. Step 6: Final answer
    x = 23,723.99

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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.