Home / 21,735.81-29,996.54-12,175.13

Finding the Fourth Proportional to 21,735.81, 29,996.54 and 12,175.13

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Solution

The fourth proportional to 21,735.81, 29,996.54 and 12,175.13 is: 16,802.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,735.81 : 29,996.54 = 12,175.13 : x
  2. Step 2: Convert to fraction form
    21,735.81/29,996.54 = 12,175.13/x
  3. Step 3: Cross multiply
    21,735.81x = 29,996.54 × 12,175.13
  4. Step 4: Simplify right side
    21,735.81x = 365,211,774.05
  5. Step 5: Solve for x
    x = 365,211,774.05/21,735.81
  6. Step 6: Final answer
    x = 16,802.31

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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.