Home / 28,289.97-39,023.93-17,661.15

Finding the Fourth Proportional to 28,289.97, 39,023.93 and 17,661.15

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Solution

The fourth proportional to 28,289.97, 39,023.93 and 17,661.15 is: 24,362.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,289.97 : 39,023.93 = 17,661.15 : x
  2. Step 2: Convert to fraction form
    28,289.97/39,023.93 = 17,661.15/x
  3. Step 3: Cross multiply
    28,289.97x = 39,023.93 × 17,661.15
  4. Step 4: Simplify right side
    28,289.97x = 689,207,539.35
  5. Step 5: Solve for x
    x = 689,207,539.35/28,289.97
  6. Step 6: Final answer
    x = 24,362.25

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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.