Home / 28,114.48-42,171.72-8,393.41

Finding the Fourth Proportional to 28,114.48, 42,171.72 and 8,393.41

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Solution

The fourth proportional to 28,114.48, 42,171.72 and 8,393.41 is: 12,590.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,114.48 : 42,171.72 = 8,393.41 : x
  2. Step 2: Convert to fraction form
    28,114.48/42,171.72 = 8,393.41/x
  3. Step 3: Cross multiply
    28,114.48x = 42,171.72 × 8,393.41
  4. Step 4: Simplify right side
    28,114.48x = 353,964,536.37
  5. Step 5: Solve for x
    x = 353,964,536.37/28,114.48
  6. Step 6: Final answer
    x = 12,590.12

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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.