Home / 33,431.98-46,140.86-20,689.26

Finding the Fourth Proportional to 33,431.98, 46,140.86 and 20,689.26

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Solution

The fourth proportional to 33,431.98, 46,140.86 and 20,689.26 is: 28,554.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,431.98 : 46,140.86 = 20,689.26 : x
  2. Step 2: Convert to fraction form
    33,431.98/46,140.86 = 20,689.26/x
  3. Step 3: Cross multiply
    33,431.98x = 46,140.86 × 20,689.26
  4. Step 4: Simplify right side
    33,431.98x = 954,620,261.07
  5. Step 5: Solve for x
    x = 954,620,261.07/33,431.98
  6. Step 6: Final answer
    x = 28,554.11

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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.