Home / 33,568.56-46,328.76-20,990.88

Finding the Fourth Proportional to 33,568.56, 46,328.76 and 20,990.88

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Solution

The fourth proportional to 33,568.56, 46,328.76 and 20,990.88 is: 28,970.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,568.56 : 46,328.76 = 20,990.88 : x
  2. Step 2: Convert to fraction form
    33,568.56/46,328.76 = 20,990.88/x
  3. Step 3: Cross multiply
    33,568.56x = 46,328.76 × 20,990.88
  4. Step 4: Simplify right side
    33,568.56x = 972,481,441.71
  5. Step 5: Solve for x
    x = 972,481,441.71/33,568.56
  6. Step 6: Final answer
    x = 28,970.01

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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.