Home / 28,965.78-43,409.37-12,304.92

Finding the Fourth Proportional to 28,965.78, 43,409.37 and 12,304.92

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Solution

The fourth proportional to 28,965.78, 43,409.37 and 12,304.92 is: 18,440.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,965.78 : 43,409.37 = 12,304.92 : x
  2. Step 2: Convert to fraction form
    28,965.78/43,409.37 = 12,304.92/x
  3. Step 3: Cross multiply
    28,965.78x = 43,409.37 × 12,304.92
  4. Step 4: Simplify right side
    28,965.78x = 534,148,825.10
  5. Step 5: Solve for x
    x = 534,148,825.10/28,965.78
  6. Step 6: Final answer
    x = 18,440.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.