Home / 25,170.12-34,739.16-18,828.48

Finding the Fourth Proportional to 25,170.12, 34,739.16 and 18,828.48

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Solution

The fourth proportional to 25,170.12, 34,739.16 and 18,828.48 is: 25,986.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,170.12 : 34,739.16 = 18,828.48 : x
  2. Step 2: Convert to fraction form
    25,170.12/34,739.16 = 18,828.48/x
  3. Step 3: Cross multiply
    25,170.12x = 34,739.16 × 18,828.48
  4. Step 4: Simplify right side
    25,170.12x = 654,085,579.28
  5. Step 5: Solve for x
    x = 654,085,579.28/25,170.12
  6. Step 6: Final answer
    x = 25,986.59

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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.