Home / 33,639.64-46,445.06-20,911.84

Finding the Fourth Proportional to 33,639.64, 46,445.06 and 20,911.84

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Solution

The fourth proportional to 33,639.64, 46,445.06 and 20,911.84 is: 28,872.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,639.64 : 46,445.06 = 20,911.84 : x
  2. Step 2: Convert to fraction form
    33,639.64/46,445.06 = 20,911.84/x
  3. Step 3: Cross multiply
    33,639.64x = 46,445.06 × 20,911.84
  4. Step 4: Simplify right side
    33,639.64x = 971,251,599.68
  5. Step 5: Solve for x
    x = 971,251,599.68/33,639.64
  6. Step 6: Final answer
    x = 28,872.24

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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.