Home / 28,707.57-39,635.78-25,673.28

Finding the Fourth Proportional to 28,707.57, 39,635.78 and 25,673.28

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Solution

The fourth proportional to 28,707.57, 39,635.78 and 25,673.28 is: 35,446.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,707.57 : 39,635.78 = 25,673.28 : x
  2. Step 2: Convert to fraction form
    28,707.57/39,635.78 = 25,673.28/x
  3. Step 3: Cross multiply
    28,707.57x = 39,635.78 × 25,673.28
  4. Step 4: Simplify right side
    28,707.57x = 1,017,580,477.96
  5. Step 5: Solve for x
    x = 1,017,580,477.96/28,707.57
  6. Step 6: Final answer
    x = 35,446.42

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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.