Home / 21,495.26-29,663.75-11,805.50

Finding the Fourth Proportional to 21,495.26, 29,663.75 and 11,805.50

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Solution

The fourth proportional to 21,495.26, 29,663.75 and 11,805.50 is: 16,291.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,495.26 : 29,663.75 = 11,805.50 : x
  2. Step 2: Convert to fraction form
    21,495.26/29,663.75 = 11,805.50/x
  3. Step 3: Cross multiply
    21,495.26x = 29,663.75 × 11,805.50
  4. Step 4: Simplify right side
    21,495.26x = 350,195,341.60
  5. Step 5: Solve for x
    x = 350,195,341.60/21,495.26
  6. Step 6: Final answer
    x = 16,291.75

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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.