Home / 28,267.22-42,399.93-12,467.36

Finding the Fourth Proportional to 28,267.22, 42,399.93 and 12,467.36

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Solution

The fourth proportional to 28,267.22, 42,399.93 and 12,467.36 is: 18,700.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,267.22 : 42,399.93 = 12,467.36 : x
  2. Step 2: Convert to fraction form
    28,267.22/42,399.93 = 12,467.36/x
  3. Step 3: Cross multiply
    28,267.22x = 42,399.93 × 12,467.36
  4. Step 4: Simplify right side
    28,267.22x = 528,615,191.28
  5. Step 5: Solve for x
    x = 528,615,191.28/28,267.22
  6. Step 6: Final answer
    x = 18,700.64

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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.