Home / 28,450.77-42,674.55-8,729.28

Finding the Fourth Proportional to 28,450.77, 42,674.55 and 8,729.28

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Solution

The fourth proportional to 28,450.77, 42,674.55 and 8,729.28 is: 13,093.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,450.77 : 42,674.55 = 8,729.28 : x
  2. Step 2: Convert to fraction form
    28,450.77/42,674.55 = 8,729.28/x
  3. Step 3: Cross multiply
    28,450.77x = 42,674.55 × 8,729.28
  4. Step 4: Simplify right side
    28,450.77x = 372,518,095.82
  5. Step 5: Solve for x
    x = 372,518,095.82/28,450.77
  6. Step 6: Final answer
    x = 13,093.43

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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.