Home / 31,391.01-43,339.86-19,467

Finding the Fourth Proportional to 31,391.01, 43,339.86 and 19,467

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Solution

The fourth proportional to 31,391.01, 43,339.86 and 19,467 is: 26,877.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,391.01 : 43,339.86 = 19,467 : x
  2. Step 2: Convert to fraction form
    31,391.01/43,339.86 = 19,467/x
  3. Step 3: Cross multiply
    31,391.01x = 43,339.86 × 19,467
  4. Step 4: Simplify right side
    31,391.01x = 843,697,054.62
  5. Step 5: Solve for x
    x = 843,697,054.62/31,391.01
  6. Step 6: Final answer
    x = 26,877.03

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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.