Home / 25,448.97-35,111.43-15,380.40

Finding the Fourth Proportional to 25,448.97, 35,111.43 and 15,380.40

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Solution

The fourth proportional to 25,448.97, 35,111.43 and 15,380.40 is: 21,220.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,448.97 : 35,111.43 = 15,380.40 : x
  2. Step 2: Convert to fraction form
    25,448.97/35,111.43 = 15,380.40/x
  3. Step 3: Cross multiply
    25,448.97x = 35,111.43 × 15,380.40
  4. Step 4: Simplify right side
    25,448.97x = 540,027,837.97
  5. Step 5: Solve for x
    x = 540,027,837.97/25,448.97
  6. Step 6: Final answer
    x = 21,220.03

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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.