Home / 28,122.93-38,800.26-18,567.54

Finding the Fourth Proportional to 28,122.93, 38,800.26 and 18,567.54

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Solution

The fourth proportional to 28,122.93, 38,800.26 and 18,567.54 is: 25,617.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,122.93 : 38,800.26 = 18,567.54 : x
  2. Step 2: Convert to fraction form
    28,122.93/38,800.26 = 18,567.54/x
  3. Step 3: Cross multiply
    28,122.93x = 38,800.26 × 18,567.54
  4. Step 4: Simplify right side
    28,122.93x = 720,425,379.56
  5. Step 5: Solve for x
    x = 720,425,379.56/28,122.93
  6. Step 6: Final answer
    x = 25,617.01

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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.