Home / 21,030.96-29,022.80-11,599.48

Finding the Fourth Proportional to 21,030.96, 29,022.80 and 11,599.48

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Solution

The fourth proportional to 21,030.96, 29,022.80 and 11,599.48 is: 16,007.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,030.96 : 29,022.80 = 11,599.48 : x
  2. Step 2: Convert to fraction form
    21,030.96/29,022.80 = 11,599.48/x
  3. Step 3: Cross multiply
    21,030.96x = 29,022.80 × 11,599.48
  4. Step 4: Simplify right side
    21,030.96x = 336,649,388.14
  5. Step 5: Solve for x
    x = 336,649,388.14/21,030.96
  6. Step 6: Final answer
    x = 16,007.32

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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.