Home / 19,127.28-28,690.80-11,330.52

Finding the Fourth Proportional to 19,127.28, 28,690.80 and 11,330.52

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Solution

The fourth proportional to 19,127.28, 28,690.80 and 11,330.52 is: 16,995.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,127.28 : 28,690.80 = 11,330.52 : x
  2. Step 2: Convert to fraction form
    19,127.28/28,690.80 = 11,330.52/x
  3. Step 3: Cross multiply
    19,127.28x = 28,690.80 × 11,330.52
  4. Step 4: Simplify right side
    19,127.28x = 325,081,683.22
  5. Step 5: Solve for x
    x = 325,081,683.22/19,127.28
  6. Step 6: Final answer
    x = 16,995.71

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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.