Home / 21,110.44-29,132.10-11,679.16

Finding the Fourth Proportional to 21,110.44, 29,132.10 and 11,679.16

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Solution

The fourth proportional to 21,110.44, 29,132.10 and 11,679.16 is: 16,117.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,110.44 : 29,132.10 = 11,679.16 : x
  2. Step 2: Convert to fraction form
    21,110.44/29,132.10 = 11,679.16/x
  3. Step 3: Cross multiply
    21,110.44x = 29,132.10 × 11,679.16
  4. Step 4: Simplify right side
    21,110.44x = 340,238,457.04
  5. Step 5: Solve for x
    x = 340,238,457.04/21,110.44
  6. Step 6: Final answer
    x = 16,117.07

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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.