Home / 33,420.90-46,119.06-18,312.78

Finding the Fourth Proportional to 33,420.90, 46,119.06 and 18,312.78

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Solution

The fourth proportional to 33,420.90, 46,119.06 and 18,312.78 is: 25,270.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,420.90 : 46,119.06 = 18,312.78 : x
  2. Step 2: Convert to fraction form
    33,420.90/46,119.06 = 18,312.78/x
  3. Step 3: Cross multiply
    33,420.90x = 46,119.06 × 18,312.78
  4. Step 4: Simplify right side
    33,420.90x = 844,568,199.59
  5. Step 5: Solve for x
    x = 844,568,199.59/33,420.90
  6. Step 6: Final answer
    x = 25,270.66

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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.