Home / 28,486.20-42,736.02-10,956.60

Finding the Fourth Proportional to 28,486.20, 42,736.02 and 10,956.60

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Solution

The fourth proportional to 28,486.20, 42,736.02 and 10,956.60 is: 16,437.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,486.20 : 42,736.02 = 10,956.60 : x
  2. Step 2: Convert to fraction form
    28,486.20/42,736.02 = 10,956.60/x
  3. Step 3: Cross multiply
    28,486.20x = 42,736.02 × 10,956.60
  4. Step 4: Simplify right side
    28,486.20x = 468,241,476.73
  5. Step 5: Solve for x
    x = 468,241,476.73/28,486.20
  6. Step 6: Final answer
    x = 16,437.48

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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.