Home / 21,466.24-29,619.21-11,905.75

Finding the Fourth Proportional to 21,466.24, 29,619.21 and 11,905.75

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Solution

The fourth proportional to 21,466.24, 29,619.21 and 11,905.75 is: 16,427.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,466.24 : 29,619.21 = 11,905.75 : x
  2. Step 2: Convert to fraction form
    21,466.24/29,619.21 = 11,905.75/x
  3. Step 3: Cross multiply
    21,466.24x = 29,619.21 × 11,905.75
  4. Step 4: Simplify right side
    21,466.24x = 352,638,909.46
  5. Step 5: Solve for x
    x = 352,638,909.46/21,466.24
  6. Step 6: Final answer
    x = 16,427.60

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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.