Home / 21,291.66-29,382.53-11,860.25

Finding the Fourth Proportional to 21,291.66, 29,382.53 and 11,860.25

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Solution

The fourth proportional to 21,291.66, 29,382.53 and 11,860.25 is: 16,367.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,291.66 : 29,382.53 = 11,860.25 : x
  2. Step 2: Convert to fraction form
    21,291.66/29,382.53 = 11,860.25/x
  3. Step 3: Cross multiply
    21,291.66x = 29,382.53 × 11,860.25
  4. Step 4: Simplify right side
    21,291.66x = 348,483,945.22
  5. Step 5: Solve for x
    x = 348,483,945.22/21,291.66
  6. Step 6: Final answer
    x = 16,367.16

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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.