Home / 28,889.20-43,333.80-14,107.60

Finding the Fourth Proportional to 28,889.20, 43,333.80 and 14,107.60

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Solution

The fourth proportional to 28,889.20, 43,333.80 and 14,107.60 is: 21,161.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,889.20 : 43,333.80 = 14,107.60 : x
  2. Step 2: Convert to fraction form
    28,889.20/43,333.80 = 14,107.60/x
  3. Step 3: Cross multiply
    28,889.20x = 43,333.80 × 14,107.60
  4. Step 4: Simplify right side
    28,889.20x = 611,335,916.88
  5. Step 5: Solve for x
    x = 611,335,916.88/28,889.20
  6. Step 6: Final answer
    x = 21,161.40

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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.