Home / 30,712.24-42,382.47-17,974.18

Finding the Fourth Proportional to 30,712.24, 42,382.47 and 17,974.18

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Solution

The fourth proportional to 30,712.24, 42,382.47 and 17,974.18 is: 24,804.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,712.24 : 42,382.47 = 17,974.18 : x
  2. Step 2: Convert to fraction form
    30,712.24/42,382.47 = 17,974.18/x
  3. Step 3: Cross multiply
    30,712.24x = 42,382.47 × 17,974.18
  4. Step 4: Simplify right side
    30,712.24x = 761,790,144.62
  5. Step 5: Solve for x
    x = 761,790,144.62/30,712.24
  6. Step 6: Final answer
    x = 24,804.12

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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.