Home / 21,275.33-29,358.80-11,713.35

Finding the Fourth Proportional to 21,275.33, 29,358.80 and 11,713.35

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Solution

The fourth proportional to 21,275.33, 29,358.80 and 11,713.35 is: 16,163.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275.33 : 29,358.80 = 11,713.35 : x
  2. Step 2: Convert to fraction form
    21,275.33/29,358.80 = 11,713.35/x
  3. Step 3: Cross multiply
    21,275.33x = 29,358.80 × 11,713.35
  4. Step 4: Simplify right side
    21,275.33x = 343,889,753.19
  5. Step 5: Solve for x
    x = 343,889,753.19/21,275.33
  6. Step 6: Final answer
    x = 16,163.78

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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.