Home / 19,805.29-27,332.06-11,308.80

Finding the Fourth Proportional to 19,805.29, 27,332.06 and 11,308.80

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Solution

The fourth proportional to 19,805.29, 27,332.06 and 11,308.80 is: 15,606.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,805.29 : 27,332.06 = 11,308.80 : x
  2. Step 2: Convert to fraction form
    19,805.29/27,332.06 = 11,308.80/x
  3. Step 3: Cross multiply
    19,805.29x = 27,332.06 × 11,308.80
  4. Step 4: Simplify right side
    19,805.29x = 309,092,724.14
  5. Step 5: Solve for x
    x = 309,092,724.14/19,805.29
  6. Step 6: Final answer
    x = 15,606.57

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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.