Home / 21,404.70-29,533.73-13,444.02

Finding the Fourth Proportional to 21,404.70, 29,533.73 and 13,444.02

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Solution

The fourth proportional to 21,404.70, 29,533.73 and 13,444.02 is: 18,549.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,404.70 : 29,533.73 = 13,444.02 : x
  2. Step 2: Convert to fraction form
    21,404.70/29,533.73 = 13,444.02/x
  3. Step 3: Cross multiply
    21,404.70x = 29,533.73 × 13,444.02
  4. Step 4: Simplify right side
    21,404.70x = 397,051,989.57
  5. Step 5: Solve for x
    x = 397,051,989.57/21,404.70
  6. Step 6: Final answer
    x = 18,549.76

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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.