Home / 28,254.90-42,396.12-11,619.92

Finding the Fourth Proportional to 28,254.90, 42,396.12 and 11,619.92

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Solution

The fourth proportional to 28,254.90, 42,396.12 and 11,619.92 is: 17,435.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,254.90 : 42,396.12 = 11,619.92 : x
  2. Step 2: Convert to fraction form
    28,254.90/42,396.12 = 11,619.92/x
  3. Step 3: Cross multiply
    28,254.90x = 42,396.12 × 11,619.92
  4. Step 4: Simplify right side
    28,254.90x = 492,639,522.71
  5. Step 5: Solve for x
    x = 492,639,522.71/28,254.90
  6. Step 6: Final answer
    x = 17,435.54

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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.