Home / 21,324.82-29,440.30-14,167.02

Finding the Fourth Proportional to 21,324.82, 29,440.30 and 14,167.02

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Solution

The fourth proportional to 21,324.82, 29,440.30 and 14,167.02 is: 19,558.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,324.82 : 29,440.30 = 14,167.02 : x
  2. Step 2: Convert to fraction form
    21,324.82/29,440.30 = 14,167.02/x
  3. Step 3: Cross multiply
    21,324.82x = 29,440.30 × 14,167.02
  4. Step 4: Simplify right side
    21,324.82x = 417,081,318.91
  5. Step 5: Solve for x
    x = 417,081,318.91/21,324.82
  6. Step 6: Final answer
    x = 19,558.49

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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.