Home / 19,681.35-27,160.03-10,728.83

Finding the Fourth Proportional to 19,681.35, 27,160.03 and 10,728.83

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Solution

The fourth proportional to 19,681.35, 27,160.03 and 10,728.83 is: 14,805.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,681.35 : 27,160.03 = 10,728.83 : x
  2. Step 2: Convert to fraction form
    19,681.35/27,160.03 = 10,728.83/x
  3. Step 3: Cross multiply
    19,681.35x = 27,160.03 × 10,728.83
  4. Step 4: Simplify right side
    19,681.35x = 291,395,344.66
  5. Step 5: Solve for x
    x = 291,395,344.66/19,681.35
  6. Step 6: Final answer
    x = 14,805.66

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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.