Home / 21,260.90-29,339.34-11,829.26

Finding the Fourth Proportional to 21,260.90, 29,339.34 and 11,829.26

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Solution

The fourth proportional to 21,260.90, 29,339.34 and 11,829.26 is: 16,323.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,260.90 : 29,339.34 = 11,829.26 : x
  2. Step 2: Convert to fraction form
    21,260.90/29,339.34 = 11,829.26/x
  3. Step 3: Cross multiply
    21,260.90x = 29,339.34 × 11,829.26
  4. Step 4: Simplify right side
    21,260.90x = 347,062,681.09
  5. Step 5: Solve for x
    x = 347,062,681.09/21,260.90
  6. Step 6: Final answer
    x = 16,323.99

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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.