Home / 21,250.76-29,326.66-12,301.07

Finding the Fourth Proportional to 21,250.76, 29,326.66 and 12,301.07

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Solution

The fourth proportional to 21,250.76, 29,326.66 and 12,301.07 is: 16,975.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,250.76 : 29,326.66 = 12,301.07 : x
  2. Step 2: Convert to fraction form
    21,250.76/29,326.66 = 12,301.07/x
  3. Step 3: Cross multiply
    21,250.76x = 29,326.66 × 12,301.07
  4. Step 4: Simplify right side
    21,250.76x = 360,749,120.14
  5. Step 5: Solve for x
    x = 360,749,120.14/21,250.76
  6. Step 6: Final answer
    x = 16,975.83

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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.