Home / 28,932.24-43,400.52-12,290.40

Finding the Fourth Proportional to 28,932.24, 43,400.52 and 12,290.40

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Solution

The fourth proportional to 28,932.24, 43,400.52 and 12,290.40 is: 18,436.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,932.24 : 43,400.52 = 12,290.40 : x
  2. Step 2: Convert to fraction form
    28,932.24/43,400.52 = 12,290.40/x
  3. Step 3: Cross multiply
    28,932.24x = 43,400.52 × 12,290.40
  4. Step 4: Simplify right side
    28,932.24x = 533,409,751.01
  5. Step 5: Solve for x
    x = 533,409,751.01/28,932.24
  6. Step 6: Final answer
    x = 18,436.52

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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.