Home / 21,551.37-29,741.18-12,119.93

Finding the Fourth Proportional to 21,551.37, 29,741.18 and 12,119.93

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Solution

The fourth proportional to 21,551.37, 29,741.18 and 12,119.93 is: 16,725.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,551.37 : 29,741.18 = 12,119.93 : x
  2. Step 2: Convert to fraction form
    21,551.37/29,741.18 = 12,119.93/x
  3. Step 3: Cross multiply
    21,551.37x = 29,741.18 × 12,119.93
  4. Step 4: Simplify right side
    21,551.37x = 360,460,921.94
  5. Step 5: Solve for x
    x = 360,460,921.94/21,551.37
  6. Step 6: Final answer
    x = 16,725.66

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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.