Home / 28,800.26-43,200.40-12,384.26

Finding the Fourth Proportional to 28,800.26, 43,200.40 and 12,384.26

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Solution

The fourth proportional to 28,800.26, 43,200.40 and 12,384.26 is: 18,576.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,800.26 : 43,200.40 = 12,384.26 : x
  2. Step 2: Convert to fraction form
    28,800.26/43,200.40 = 12,384.26/x
  3. Step 3: Cross multiply
    28,800.26x = 43,200.40 × 12,384.26
  4. Step 4: Simplify right side
    28,800.26x = 535,004,985.70
  5. Step 5: Solve for x
    x = 535,004,985.70/28,800.26
  6. Step 6: Final answer
    x = 18,576.39

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Similar ratio
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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.