Home / 21,425.22-29,566.67-11,865.33

Finding the Fourth Proportional to 21,425.22, 29,566.67 and 11,865.33

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Solution

The fourth proportional to 21,425.22, 29,566.67 and 11,865.33 is: 16,374.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,425.22 : 29,566.67 = 11,865.33 : x
  2. Step 2: Convert to fraction form
    21,425.22/29,566.67 = 11,865.33/x
  3. Step 3: Cross multiply
    21,425.22x = 29,566.67 × 11,865.33
  4. Step 4: Simplify right side
    21,425.22x = 350,818,237.22
  5. Step 5: Solve for x
    x = 350,818,237.22/21,425.22
  6. Step 6: Final answer
    x = 16,374.08

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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.