Home / 28,110.54-42,152.03-9,384.15

Finding the Fourth Proportional to 28,110.54, 42,152.03 and 9,384.15

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Solution

The fourth proportional to 28,110.54, 42,152.03 and 9,384.15 is: 14,071.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,110.54 : 42,152.03 = 9,384.15 : x
  2. Step 2: Convert to fraction form
    28,110.54/42,152.03 = 9,384.15/x
  3. Step 3: Cross multiply
    28,110.54x = 42,152.03 × 9,384.15
  4. Step 4: Simplify right side
    28,110.54x = 395,560,972.32
  5. Step 5: Solve for x
    x = 395,560,972.32/28,110.54
  6. Step 6: Final answer
    x = 14,071.62

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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.