Home / 19,122.40-28,694.76-8,028.28

Finding the Fourth Proportional to 19,122.40, 28,694.76 and 8,028.28

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Solution

The fourth proportional to 19,122.40, 28,694.76 and 8,028.28 is: 12,047.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,122.40 : 28,694.76 = 8,028.28 : x
  2. Step 2: Convert to fraction form
    19,122.40/28,694.76 = 8,028.28/x
  3. Step 3: Cross multiply
    19,122.40x = 28,694.76 × 8,028.28
  4. Step 4: Simplify right side
    19,122.40x = 230,369,567.81
  5. Step 5: Solve for x
    x = 230,369,567.81/19,122.40
  6. Step 6: Final answer
    x = 12,047.11

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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.