Home / 28,705.36-39,608.61-15,958.19

Finding the Fourth Proportional to 28,705.36, 39,608.61 and 15,958.19

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Solution

The fourth proportional to 28,705.36, 39,608.61 and 15,958.19 is: 22,019.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,705.36 : 39,608.61 = 15,958.19 : x
  2. Step 2: Convert to fraction form
    28,705.36/39,608.61 = 15,958.19/x
  3. Step 3: Cross multiply
    28,705.36x = 39,608.61 × 15,958.19
  4. Step 4: Simplify right side
    28,705.36x = 632,081,466.13
  5. Step 5: Solve for x
    x = 632,081,466.13/28,705.36
  6. Step 6: Final answer
    x = 22,019.63

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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.