Home / 28,975.72-39,987.10-22,609.56

Finding the Fourth Proportional to 28,975.72, 39,987.10 and 22,609.56

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Solution

The fourth proportional to 28,975.72, 39,987.10 and 22,609.56 is: 31,201.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,975.72 : 39,987.10 = 22,609.56 : x
  2. Step 2: Convert to fraction form
    28,975.72/39,987.10 = 22,609.56/x
  3. Step 3: Cross multiply
    28,975.72x = 39,987.10 × 22,609.56
  4. Step 4: Simplify right side
    28,975.72x = 904,090,736.68
  5. Step 5: Solve for x
    x = 904,090,736.68/28,975.72
  6. Step 6: Final answer
    x = 31,201.67

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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.