Home / 30,886.83-42,622.68-16,739.37

Finding the Fourth Proportional to 30,886.83, 42,622.68 and 16,739.37

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Solution

The fourth proportional to 30,886.83, 42,622.68 and 16,739.37 is: 23,099.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,886.83 : 42,622.68 = 16,739.37 : x
  2. Step 2: Convert to fraction form
    30,886.83/42,622.68 = 16,739.37/x
  3. Step 3: Cross multiply
    30,886.83x = 42,622.68 × 16,739.37
  4. Step 4: Simplify right side
    30,886.83x = 713,476,810.91
  5. Step 5: Solve for x
    x = 713,476,810.91/30,886.83
  6. Step 6: Final answer
    x = 23,099.71

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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.