Home / 31,838.36-43,937.21-19,908.62

Finding the Fourth Proportional to 31,838.36, 43,937.21 and 19,908.62

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Solution

The fourth proportional to 31,838.36, 43,937.21 and 19,908.62 is: 27,474.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,838.36 : 43,937.21 = 19,908.62 : x
  2. Step 2: Convert to fraction form
    31,838.36/43,937.21 = 19,908.62/x
  3. Step 3: Cross multiply
    31,838.36x = 43,937.21 × 19,908.62
  4. Step 4: Simplify right side
    31,838.36x = 874,728,898.52
  5. Step 5: Solve for x
    x = 874,728,898.52/31,838.36
  6. Step 6: Final answer
    x = 27,474.05

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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.