Home / 21,425.36-29,563.47-13,461.94

Finding the Fourth Proportional to 21,425.36, 29,563.47 and 13,461.94

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Solution

The fourth proportional to 21,425.36, 29,563.47 and 13,461.94 is: 18,575.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,425.36 : 29,563.47 = 13,461.94 : x
  2. Step 2: Convert to fraction form
    21,425.36/29,563.47 = 13,461.94/x
  3. Step 3: Cross multiply
    21,425.36x = 29,563.47 × 13,461.94
  4. Step 4: Simplify right side
    21,425.36x = 397,981,585.42
  5. Step 5: Solve for x
    x = 397,981,585.42/21,425.36
  6. Step 6: Final answer
    x = 18,575.26

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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.