Home / 30,986.24-42,767.68-19,059.68

Finding the Fourth Proportional to 30,986.24, 42,767.68 and 19,059.68

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Solution

The fourth proportional to 30,986.24, 42,767.68 and 19,059.68 is: 26,306.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,986.24 : 42,767.68 = 19,059.68 : x
  2. Step 2: Convert to fraction form
    30,986.24/42,767.68 = 19,059.68/x
  3. Step 3: Cross multiply
    30,986.24x = 42,767.68 × 19,059.68
  4. Step 4: Simplify right side
    30,986.24x = 815,138,295.14
  5. Step 5: Solve for x
    x = 815,138,295.14/30,986.24
  6. Step 6: Final answer
    x = 26,306.46

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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.