Home / 21,926.56-30,258.60-12,495.28

Finding the Fourth Proportional to 21,926.56, 30,258.60 and 12,495.28

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Solution

The fourth proportional to 21,926.56, 30,258.60 and 12,495.28 is: 17,243.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,926.56 : 30,258.60 = 12,495.28 : x
  2. Step 2: Convert to fraction form
    21,926.56/30,258.60 = 12,495.28/x
  3. Step 3: Cross multiply
    21,926.56x = 30,258.60 × 12,495.28
  4. Step 4: Simplify right side
    21,926.56x = 378,089,679.41
  5. Step 5: Solve for x
    x = 378,089,679.41/21,926.56
  6. Step 6: Final answer
    x = 17,243.46

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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.