Home / 30,973.26-42,736.79-18,865.62

Finding the Fourth Proportional to 30,973.26, 42,736.79 and 18,865.62

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Solution

The fourth proportional to 30,973.26, 42,736.79 and 18,865.62 is: 26,030.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,973.26 : 42,736.79 = 18,865.62 : x
  2. Step 2: Convert to fraction form
    30,973.26/42,736.79 = 18,865.62/x
  3. Step 3: Cross multiply
    30,973.26x = 42,736.79 × 18,865.62
  4. Step 4: Simplify right side
    30,973.26x = 806,256,040.16
  5. Step 5: Solve for x
    x = 806,256,040.16/30,973.26
  6. Step 6: Final answer
    x = 26,030.71

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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.