Home / 21,016.36-29,004.31-12,065.59

Finding the Fourth Proportional to 21,016.36, 29,004.31 and 12,065.59

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Solution

The fourth proportional to 21,016.36, 29,004.31 and 12,065.59 is: 16,651.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,016.36 : 29,004.31 = 12,065.59 : x
  2. Step 2: Convert to fraction form
    21,016.36/29,004.31 = 12,065.59/x
  3. Step 3: Cross multiply
    21,016.36x = 29,004.31 × 12,065.59
  4. Step 4: Simplify right side
    21,016.36x = 349,953,907.34
  5. Step 5: Solve for x
    x = 349,953,907.34/21,016.36
  6. Step 6: Final answer
    x = 16,651.50

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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.