Home / 21,168.74-29,211.29-11,607.09

Finding the Fourth Proportional to 21,168.74, 29,211.29 and 11,607.09

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Solution

The fourth proportional to 21,168.74, 29,211.29 and 11,607.09 is: 16,016.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,168.74 : 29,211.29 = 11,607.09 : x
  2. Step 2: Convert to fraction form
    21,168.74/29,211.29 = 11,607.09/x
  3. Step 3: Cross multiply
    21,168.74x = 29,211.29 × 11,607.09
  4. Step 4: Simplify right side
    21,168.74x = 339,058,101.06
  5. Step 5: Solve for x
    x = 339,058,101.06/21,168.74
  6. Step 6: Final answer
    x = 16,016.93

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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.