Home / 21,260.72-29,340.68-11,829.36

Finding the Fourth Proportional to 21,260.72, 29,340.68 and 11,829.36

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Solution

The fourth proportional to 21,260.72, 29,340.68 and 11,829.36 is: 16,325.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,260.72 : 29,340.68 = 11,829.36 : x
  2. Step 2: Convert to fraction form
    21,260.72/29,340.68 = 11,829.36/x
  3. Step 3: Cross multiply
    21,260.72x = 29,340.68 × 11,829.36
  4. Step 4: Simplify right side
    21,260.72x = 347,081,466.36
  5. Step 5: Solve for x
    x = 347,081,466.36/21,260.72
  6. Step 6: Final answer
    x = 16,325.01

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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.