Home / 21,308.58-29,406.60-11,749.14

Finding the Fourth Proportional to 21,308.58, 29,406.60 and 11,749.14

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Solution

The fourth proportional to 21,308.58, 29,406.60 and 11,749.14 is: 16,214.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,308.58 : 29,406.60 = 11,749.14 : x
  2. Step 2: Convert to fraction form
    21,308.58/29,406.60 = 11,749.14/x
  3. Step 3: Cross multiply
    21,308.58x = 29,406.60 × 11,749.14
  4. Step 4: Simplify right side
    21,308.58x = 345,502,260.32
  5. Step 5: Solve for x
    x = 345,502,260.32/21,308.58
  6. Step 6: Final answer
    x = 16,214.23

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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.