Home / 28,289.84-39,040.09-15,544.05

Finding the Fourth Proportional to 28,289.84, 39,040.09 and 15,544.05

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Solution

The fourth proportional to 28,289.84, 39,040.09 and 15,544.05 is: 21,450.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,289.84 : 39,040.09 = 15,544.05 : x
  2. Step 2: Convert to fraction form
    28,289.84/39,040.09 = 15,544.05/x
  3. Step 3: Cross multiply
    28,289.84x = 39,040.09 × 15,544.05
  4. Step 4: Simplify right side
    28,289.84x = 606,841,110.96
  5. Step 5: Solve for x
    x = 606,841,110.96/28,289.84
  6. Step 6: Final answer
    x = 21,450.85

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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.