Home / 28,142.67-38,835.63-16,203.54

Finding the Fourth Proportional to 28,142.67, 38,835.63 and 16,203.54

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Solution

The fourth proportional to 28,142.67, 38,835.63 and 16,203.54 is: 22,360.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,142.67 : 38,835.63 = 16,203.54 : x
  2. Step 2: Convert to fraction form
    28,142.67/38,835.63 = 16,203.54/x
  3. Step 3: Cross multiply
    28,142.67x = 38,835.63 × 16,203.54
  4. Step 4: Simplify right side
    28,142.67x = 629,274,684.13
  5. Step 5: Solve for x
    x = 629,274,684.13/28,142.67
  6. Step 6: Final answer
    x = 22,360.16

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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.