Home / 19,303.11-28,905.05-13,371.53

Finding the Fourth Proportional to 19,303.11, 28,905.05 and 13,371.53

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Solution

The fourth proportional to 19,303.11, 28,905.05 and 13,371.53 is: 20,022.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,303.11 : 28,905.05 = 13,371.53 : x
  2. Step 2: Convert to fraction form
    19,303.11/28,905.05 = 13,371.53/x
  3. Step 3: Cross multiply
    19,303.11x = 28,905.05 × 13,371.53
  4. Step 4: Simplify right side
    19,303.11x = 386,504,632.13
  5. Step 5: Solve for x
    x = 386,504,632.13/19,303.11
  6. Step 6: Final answer
    x = 20,022.92

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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.