Home / 19,131.84-28,693.62-13,569.66

Finding the Fourth Proportional to 19,131.84, 28,693.62 and 13,569.66

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Solution

The fourth proportional to 19,131.84, 28,693.62 and 13,569.66 is: 20,351.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,131.84 : 28,693.62 = 13,569.66 : x
  2. Step 2: Convert to fraction form
    19,131.84/28,693.62 = 13,569.66/x
  3. Step 3: Cross multiply
    19,131.84x = 28,693.62 × 13,569.66
  4. Step 4: Simplify right side
    19,131.84x = 389,362,667.57
  5. Step 5: Solve for x
    x = 389,362,667.57/19,131.84
  6. Step 6: Final answer
    x = 20,351.55

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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.