Home / 33,315.74-45,971.30-21,395.23

Finding the Fourth Proportional to 33,315.74, 45,971.30 and 21,395.23

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Solution

The fourth proportional to 33,315.74, 45,971.30 and 21,395.23 is: 29,522.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,315.74 : 45,971.30 = 21,395.23 : x
  2. Step 2: Convert to fraction form
    33,315.74/45,971.30 = 21,395.23/x
  3. Step 3: Cross multiply
    33,315.74x = 45,971.30 × 21,395.23
  4. Step 4: Simplify right side
    33,315.74x = 983,566,200.07
  5. Step 5: Solve for x
    x = 983,566,200.07/33,315.74
  6. Step 6: Final answer
    x = 29,522.57

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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.