Home / 33,315.99-45,971.64-21,395.48

Finding the Fourth Proportional to 33,315.99, 45,971.64 and 21,395.48

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Solution

The fourth proportional to 33,315.99, 45,971.64 and 21,395.48 is: 29,522.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,315.99 : 45,971.64 = 21,395.48 : x
  2. Step 2: Convert to fraction form
    33,315.99/45,971.64 = 21,395.48/x
  3. Step 3: Cross multiply
    33,315.99x = 45,971.64 × 21,395.48
  4. Step 4: Simplify right side
    33,315.99x = 983,585,074.33
  5. Step 5: Solve for x
    x = 983,585,074.33/33,315.99
  6. Step 6: Final answer
    x = 29,522.91

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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.