Home / 28,971.24-39,988.18-17,038.44

Finding the Fourth Proportional to 28,971.24, 39,988.18 and 17,038.44

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Solution

The fourth proportional to 28,971.24, 39,988.18 and 17,038.44 is: 23,517.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,971.24 : 39,988.18 = 17,038.44 : x
  2. Step 2: Convert to fraction form
    28,971.24/39,988.18 = 17,038.44/x
  3. Step 3: Cross multiply
    28,971.24x = 39,988.18 × 17,038.44
  4. Step 4: Simplify right side
    28,971.24x = 681,336,205.64
  5. Step 5: Solve for x
    x = 681,336,205.64/28,971.24
  6. Step 6: Final answer
    x = 23,517.67

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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.