Home / 25,531.40-35,231.26-14,919.88

Finding the Fourth Proportional to 25,531.40, 35,231.26 and 14,919.88

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Solution

The fourth proportional to 25,531.40, 35,231.26 and 14,919.88 is: 20,588.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,531.40 : 35,231.26 = 14,919.88 : x
  2. Step 2: Convert to fraction form
    25,531.40/35,231.26 = 14,919.88/x
  3. Step 3: Cross multiply
    25,531.40x = 35,231.26 × 14,919.88
  4. Step 4: Simplify right side
    25,531.40x = 525,646,171.45
  5. Step 5: Solve for x
    x = 525,646,171.45/25,531.40
  6. Step 6: Final answer
    x = 20,588.22

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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.