Home / 21,401.74-29,534.66-11,970.37

Finding the Fourth Proportional to 21,401.74, 29,534.66 and 11,970.37

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Solution

The fourth proportional to 21,401.74, 29,534.66 and 11,970.37 is: 16,519.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,401.74 : 29,534.66 = 11,970.37 : x
  2. Step 2: Convert to fraction form
    21,401.74/29,534.66 = 11,970.37/x
  3. Step 3: Cross multiply
    21,401.74x = 29,534.66 × 11,970.37
  4. Step 4: Simplify right side
    21,401.74x = 353,540,808.02
  5. Step 5: Solve for x
    x = 353,540,808.02/21,401.74
  6. Step 6: Final answer
    x = 16,519.26

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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.