Home / 25,415.25-35,073.06-15,479.25

Finding the Fourth Proportional to 25,415.25, 35,073.06 and 15,479.25

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Solution

The fourth proportional to 25,415.25, 35,073.06 and 15,479.25 is: 21,361.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,415.25 : 35,073.06 = 15,479.25 : x
  2. Step 2: Convert to fraction form
    25,415.25/35,073.06 = 15,479.25/x
  3. Step 3: Cross multiply
    25,415.25x = 35,073.06 × 15,479.25
  4. Step 4: Simplify right side
    25,415.25x = 542,904,664.01
  5. Step 5: Solve for x
    x = 542,904,664.01/25,415.25
  6. Step 6: Final answer
    x = 21,361.37

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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.