Home / 21,411.51-29,558.24-14,253.36

Finding the Fourth Proportional to 21,411.51, 29,558.24 and 14,253.36

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Solution

The fourth proportional to 21,411.51, 29,558.24 and 14,253.36 is: 19,676.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,411.51 : 29,558.24 = 14,253.36 : x
  2. Step 2: Convert to fraction form
    21,411.51/29,558.24 = 14,253.36/x
  3. Step 3: Cross multiply
    21,411.51x = 29,558.24 × 14,253.36
  4. Step 4: Simplify right side
    21,411.51x = 421,304,235.69
  5. Step 5: Solve for x
    x = 421,304,235.69/21,411.51
  6. Step 6: Final answer
    x = 19,676.53

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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.