Home / 21,260.34-29,339.37-11,828.88

Finding the Fourth Proportional to 21,260.34, 29,339.37 and 11,828.88

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Solution

The fourth proportional to 21,260.34, 29,339.37 and 11,828.88 is: 16,323.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,260.34 : 29,339.37 = 11,828.88 : x
  2. Step 2: Convert to fraction form
    21,260.34/29,339.37 = 11,828.88/x
  3. Step 3: Cross multiply
    21,260.34x = 29,339.37 × 11,828.88
  4. Step 4: Simplify right side
    21,260.34x = 347,051,887.01
  5. Step 5: Solve for x
    x = 347,051,887.01/21,260.34
  6. Step 6: Final answer
    x = 16,323.91

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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.