Home / 30,159.25-41,613.75-18,223.25

Finding the Fourth Proportional to 30,159.25, 41,613.75 and 18,223.25

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Solution

The fourth proportional to 30,159.25, 41,613.75 and 18,223.25 is: 25,144.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,159.25 : 41,613.75 = 18,223.25 : x
  2. Step 2: Convert to fraction form
    30,159.25/41,613.75 = 18,223.25/x
  3. Step 3: Cross multiply
    30,159.25x = 41,613.75 × 18,223.25
  4. Step 4: Simplify right side
    30,159.25x = 758,337,561.62
  5. Step 5: Solve for x
    x = 758,337,561.62/30,159.25
  6. Step 6: Final answer
    x = 25,144.45

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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.