Home / 28,005.03-42,014.19-8,014.80

Finding the Fourth Proportional to 28,005.03, 42,014.19 and 8,014.80

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Solution

The fourth proportional to 28,005.03, 42,014.19 and 8,014.80 is: 12,024.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,005.03 : 42,014.19 = 8,014.80 : x
  2. Step 2: Convert to fraction form
    28,005.03/42,014.19 = 8,014.80/x
  3. Step 3: Cross multiply
    28,005.03x = 42,014.19 × 8,014.80
  4. Step 4: Simplify right side
    28,005.03x = 336,735,330.01
  5. Step 5: Solve for x
    x = 336,735,330.01/28,005.03
  6. Step 6: Final answer
    x = 12,024.10

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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.