Home / 30,152.21-41,604.67-18,207.55

Finding the Fourth Proportional to 30,152.21, 41,604.67 and 18,207.55

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Solution

The fourth proportional to 30,152.21, 41,604.67 and 18,207.55 is: 25,123.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,152.21 : 41,604.67 = 18,207.55 : x
  2. Step 2: Convert to fraction form
    30,152.21/41,604.67 = 18,207.55/x
  3. Step 3: Cross multiply
    30,152.21x = 41,604.67 × 18,207.55
  4. Step 4: Simplify right side
    30,152.21x = 757,519,109.26
  5. Step 5: Solve for x
    x = 757,519,109.26/30,152.21
  6. Step 6: Final answer
    x = 25,123.17

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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.