Home / 21,235.32-29,304.75-11,675.37

Finding the Fourth Proportional to 21,235.32, 29,304.75 and 11,675.37

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Solution

The fourth proportional to 21,235.32, 29,304.75 and 11,675.37 is: 16,112.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,235.32 : 29,304.75 = 11,675.37 : x
  2. Step 2: Convert to fraction form
    21,235.32/29,304.75 = 11,675.37/x
  3. Step 3: Cross multiply
    21,235.32x = 29,304.75 × 11,675.37
  4. Step 4: Simplify right side
    21,235.32x = 342,143,746.63
  5. Step 5: Solve for x
    x = 342,143,746.63/21,235.32
  6. Step 6: Final answer
    x = 16,112.02

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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.