Home / 28,340.44-39,110.03-15,765.19

Finding the Fourth Proportional to 28,340.44, 39,110.03 and 15,765.19

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Solution

The fourth proportional to 28,340.44, 39,110.03 and 15,765.19 is: 21,756.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,340.44 : 39,110.03 = 15,765.19 : x
  2. Step 2: Convert to fraction form
    28,340.44/39,110.03 = 15,765.19/x
  3. Step 3: Cross multiply
    28,340.44x = 39,110.03 × 15,765.19
  4. Step 4: Simplify right side
    28,340.44x = 616,576,995.49
  5. Step 5: Solve for x
    x = 616,576,995.49/28,340.44
  6. Step 6: Final answer
    x = 21,756.09

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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.