Home / 28,419.66-39,219.39-17,089.50

Finding the Fourth Proportional to 28,419.66, 39,219.39 and 17,089.50

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Solution

The fourth proportional to 28,419.66, 39,219.39 and 17,089.50 is: 23,583.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,419.66 : 39,219.39 = 17,089.50 : x
  2. Step 2: Convert to fraction form
    28,419.66/39,219.39 = 17,089.50/x
  3. Step 3: Cross multiply
    28,419.66x = 39,219.39 × 17,089.50
  4. Step 4: Simplify right side
    28,419.66x = 670,239,765.41
  5. Step 5: Solve for x
    x = 670,239,765.41/28,419.66
  6. Step 6: Final answer
    x = 23,583.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.