Home / 28,257.90-42,400.62-11,622.92

Finding the Fourth Proportional to 28,257.90, 42,400.62 and 11,622.92

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Solution

The fourth proportional to 28,257.90, 42,400.62 and 11,622.92 is: 17,440.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,257.90 : 42,400.62 = 11,622.92 : x
  2. Step 2: Convert to fraction form
    28,257.90/42,400.62 = 11,622.92/x
  3. Step 3: Cross multiply
    28,257.90x = 42,400.62 × 11,622.92
  4. Step 4: Simplify right side
    28,257.90x = 492,819,014.21
  5. Step 5: Solve for x
    x = 492,819,014.21/28,257.90
  6. Step 6: Final answer
    x = 17,440.04

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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.