Home / 28,019.76-42,033.96-8,301.36

Finding the Fourth Proportional to 28,019.76, 42,033.96 and 8,301.36

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Solution

The fourth proportional to 28,019.76, 42,033.96 and 8,301.36 is: 12,453.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,019.76 : 42,033.96 = 8,301.36 : x
  2. Step 2: Convert to fraction form
    28,019.76/42,033.96 = 8,301.36/x
  3. Step 3: Cross multiply
    28,019.76x = 42,033.96 × 8,301.36
  4. Step 4: Simplify right side
    28,019.76x = 348,939,034.19
  5. Step 5: Solve for x
    x = 348,939,034.19/28,019.76
  6. Step 6: Final answer
    x = 12,453.32

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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.