Home / 21,551.54-29,741.72-13,051.87

Finding the Fourth Proportional to 21,551.54, 29,741.72 and 13,051.87

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Solution

The fourth proportional to 21,551.54, 29,741.72 and 13,051.87 is: 18,011.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,551.54 : 29,741.72 = 13,051.87 : x
  2. Step 2: Convert to fraction form
    21,551.54/29,741.72 = 13,051.87/x
  3. Step 3: Cross multiply
    21,551.54x = 29,741.72 × 13,051.87
  4. Step 4: Simplify right side
    21,551.54x = 388,184,849.05
  5. Step 5: Solve for x
    x = 388,184,849.05/21,551.54
  6. Step 6: Final answer
    x = 18,011.93

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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.