Home / 33,115.99-45,698.21-18,969.74

Finding the Fourth Proportional to 33,115.99, 45,698.21 and 18,969.74

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Solution

The fourth proportional to 33,115.99, 45,698.21 and 18,969.74 is: 26,177.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,115.99 : 45,698.21 = 18,969.74 : x
  2. Step 2: Convert to fraction form
    33,115.99/45,698.21 = 18,969.74/x
  3. Step 3: Cross multiply
    33,115.99x = 45,698.21 × 18,969.74
  4. Step 4: Simplify right side
    33,115.99x = 866,883,209.59
  5. Step 5: Solve for x
    x = 866,883,209.59/33,115.99
  6. Step 6: Final answer
    x = 26,177.18

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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.