Home / 28,648.22-39,533.93-15,900.66

Finding the Fourth Proportional to 28,648.22, 39,533.93 and 15,900.66

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Solution

The fourth proportional to 28,648.22, 39,533.93 and 15,900.66 is: 21,942.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,648.22 : 39,533.93 = 15,900.66 : x
  2. Step 2: Convert to fraction form
    28,648.22/39,533.93 = 15,900.66/x
  3. Step 3: Cross multiply
    28,648.22x = 39,533.93 × 15,900.66
  4. Step 4: Simplify right side
    28,648.22x = 628,615,302.22
  5. Step 5: Solve for x
    x = 628,615,302.22/28,648.22
  6. Step 6: Final answer
    x = 21,942.56

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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.