Home / 28,866.60-43,316.10-12,223.80

Finding the Fourth Proportional to 28,866.60, 43,316.10 and 12,223.80

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Solution

The fourth proportional to 28,866.60, 43,316.10 and 12,223.80 is: 18,342.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,866.60 : 43,316.10 = 12,223.80 : x
  2. Step 2: Convert to fraction form
    28,866.60/43,316.10 = 12,223.80/x
  3. Step 3: Cross multiply
    28,866.60x = 43,316.10 × 12,223.80
  4. Step 4: Simplify right side
    28,866.60x = 529,487,343.18
  5. Step 5: Solve for x
    x = 529,487,343.18/28,866.60
  6. Step 6: Final answer
    x = 18,342.56

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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.