Home / 19,081.82-28,639.20-13,242.53

Finding the Fourth Proportional to 19,081.82, 28,639.20 and 13,242.53

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Solution

The fourth proportional to 19,081.82, 28,639.20 and 13,242.53 is: 19,875.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,081.82 : 28,639.20 = 13,242.53 : x
  2. Step 2: Convert to fraction form
    19,081.82/28,639.20 = 13,242.53/x
  3. Step 3: Cross multiply
    19,081.82x = 28,639.20 × 13,242.53
  4. Step 4: Simplify right side
    19,081.82x = 379,255,465.18
  5. Step 5: Solve for x
    x = 379,255,465.18/19,081.82
  6. Step 6: Final answer
    x = 19,875.22

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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.