Home / 21,257.91-29,337.29-11,826.47

Finding the Fourth Proportional to 21,257.91, 29,337.29 and 11,826.47

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Solution

The fourth proportional to 21,257.91, 29,337.29 and 11,826.47 is: 16,321.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,257.91 : 29,337.29 = 11,826.47 : x
  2. Step 2: Convert to fraction form
    21,257.91/29,337.29 = 11,826.47/x
  3. Step 3: Cross multiply
    21,257.91x = 29,337.29 × 11,826.47
  4. Step 4: Simplify right side
    21,257.91x = 346,956,580.07
  5. Step 5: Solve for x
    x = 346,956,580.07/21,257.91
  6. Step 6: Final answer
    x = 16,321.29

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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.