Home / 19,912.43-29,853.83-12,017.63

Finding the Fourth Proportional to 19,912.43, 29,853.83 and 12,017.63

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Solution

The fourth proportional to 19,912.43, 29,853.83 and 12,017.63 is: 18,017.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,912.43 : 29,853.83 = 12,017.63 : x
  2. Step 2: Convert to fraction form
    19,912.43/29,853.83 = 12,017.63/x
  3. Step 3: Cross multiply
    19,912.43x = 29,853.83 × 12,017.63
  4. Step 4: Simplify right side
    19,912.43x = 358,772,387.70
  5. Step 5: Solve for x
    x = 358,772,387.70/19,912.43
  6. Step 6: Final answer
    x = 18,017.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.