Home / 19,971.83-27,561.21-11,019.33

Finding the Fourth Proportional to 19,971.83, 27,561.21 and 11,019.33

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Solution

The fourth proportional to 19,971.83, 27,561.21 and 11,019.33 is: 15,206.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,971.83 : 27,561.21 = 11,019.33 : x
  2. Step 2: Convert to fraction form
    19,971.83/27,561.21 = 11,019.33/x
  3. Step 3: Cross multiply
    19,971.83x = 27,561.21 × 11,019.33
  4. Step 4: Simplify right side
    19,971.83x = 303,706,068.19
  5. Step 5: Solve for x
    x = 303,706,068.19/19,971.83
  6. Step 6: Final answer
    x = 15,206.72

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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.