Home / 19,681.55-27,164.33-13,648.16

Finding the Fourth Proportional to 19,681.55, 27,164.33 and 13,648.16

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Solution

The fourth proportional to 19,681.55, 27,164.33 and 13,648.16 is: 18,837.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,681.55 : 27,164.33 = 13,648.16 : x
  2. Step 2: Convert to fraction form
    19,681.55/27,164.33 = 13,648.16/x
  3. Step 3: Cross multiply
    19,681.55x = 27,164.33 × 13,648.16
  4. Step 4: Simplify right side
    19,681.55x = 370,743,172.98
  5. Step 5: Solve for x
    x = 370,743,172.98/19,681.55
  6. Step 6: Final answer
    x = 18,837.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.