Home / 30,271.86-41,757.39-19,668.51

Finding the Fourth Proportional to 30,271.86, 41,757.39 and 19,668.51

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Solution

The fourth proportional to 30,271.86, 41,757.39 and 19,668.51 is: 27,130.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,271.86 : 41,757.39 = 19,668.51 : x
  2. Step 2: Convert to fraction form
    30,271.86/41,757.39 = 19,668.51/x
  3. Step 3: Cross multiply
    30,271.86x = 41,757.39 × 19,668.51
  4. Step 4: Simplify right side
    30,271.86x = 821,305,642.79
  5. Step 5: Solve for x
    x = 821,305,642.79/30,271.86
  6. Step 6: Final answer
    x = 27,130.99

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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.