Home / 28,963.12-43,465.40-12,334.80

Finding the Fourth Proportional to 28,963.12, 43,465.40 and 12,334.80

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Solution

The fourth proportional to 28,963.12, 43,465.40 and 12,334.80 is: 18,511.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,963.12 : 43,465.40 = 12,334.80 : x
  2. Step 2: Convert to fraction form
    28,963.12/43,465.40 = 12,334.80/x
  3. Step 3: Cross multiply
    28,963.12x = 43,465.40 × 12,334.80
  4. Step 4: Simplify right side
    28,963.12x = 536,137,015.92
  5. Step 5: Solve for x
    x = 536,137,015.92/28,963.12
  6. Step 6: Final answer
    x = 18,511.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.