Home / 30,890.25-42,628.59-16,743.24

Finding the Fourth Proportional to 30,890.25, 42,628.59 and 16,743.24

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Solution

The fourth proportional to 30,890.25, 42,628.59 and 16,743.24 is: 23,105.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,890.25 : 42,628.59 = 16,743.24 : x
  2. Step 2: Convert to fraction form
    30,890.25/42,628.59 = 16,743.24/x
  3. Step 3: Cross multiply
    30,890.25x = 42,628.59 × 16,743.24
  4. Step 4: Simplify right side
    30,890.25x = 713,740,713.23
  5. Step 5: Solve for x
    x = 713,740,713.23/30,890.25
  6. Step 6: Final answer
    x = 23,105.70

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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.