Home / 28,971.26-39,977.03-16,222.67

Finding the Fourth Proportional to 28,971.26, 39,977.03 and 16,222.67

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Solution

The fourth proportional to 28,971.26, 39,977.03 and 16,222.67 is: 22,385.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,971.26 : 39,977.03 = 16,222.67 : x
  2. Step 2: Convert to fraction form
    28,971.26/39,977.03 = 16,222.67/x
  3. Step 3: Cross multiply
    28,971.26x = 39,977.03 × 16,222.67
  4. Step 4: Simplify right side
    28,971.26x = 648,534,165.27
  5. Step 5: Solve for x
    x = 648,534,165.27/28,971.26
  6. Step 6: Final answer
    x = 22,385.43

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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.