Home / 21,551.14-29,740.26-12,119.71

Finding the Fourth Proportional to 21,551.14, 29,740.26 and 12,119.71

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Solution

The fourth proportional to 21,551.14, 29,740.26 and 12,119.71 is: 16,725.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,551.14 : 29,740.26 = 12,119.71 : x
  2. Step 2: Convert to fraction form
    21,551.14/29,740.26 = 12,119.71/x
  3. Step 3: Cross multiply
    21,551.14x = 29,740.26 × 12,119.71
  4. Step 4: Simplify right side
    21,551.14x = 360,443,326.52
  5. Step 5: Solve for x
    x = 360,443,326.52/21,551.14
  6. Step 6: Final answer
    x = 16,725.02

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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.