Home / 19,081.04-28,639.17-13,749.75

Finding the Fourth Proportional to 19,081.04, 28,639.17 and 13,749.75

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Solution

The fourth proportional to 19,081.04, 28,639.17 and 13,749.75 is: 20,637.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,081.04 : 28,639.17 = 13,749.75 : x
  2. Step 2: Convert to fraction form
    19,081.04/28,639.17 = 13,749.75/x
  3. Step 3: Cross multiply
    19,081.04x = 28,639.17 × 13,749.75
  4. Step 4: Simplify right side
    19,081.04x = 393,781,427.71
  5. Step 5: Solve for x
    x = 393,781,427.71/19,081.04
  6. Step 6: Final answer
    x = 20,637.32

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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.