Home / 21,843.61-30,152.23-19,183.17

Finding the Fourth Proportional to 21,843.61, 30,152.23 and 19,183.17

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Solution

The fourth proportional to 21,843.61, 30,152.23 and 19,183.17 is: 26,479.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,843.61 : 30,152.23 = 19,183.17 : x
  2. Step 2: Convert to fraction form
    21,843.61/30,152.23 = 19,183.17/x
  3. Step 3: Cross multiply
    21,843.61x = 30,152.23 × 19,183.17
  4. Step 4: Simplify right side
    21,843.61x = 578,415,203.21
  5. Step 5: Solve for x
    x = 578,415,203.21/21,843.61
  6. Step 6: Final answer
    x = 26,479.84

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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.