Home / 19,960.96-27,550.08-11,580.16

Finding the Fourth Proportional to 19,960.96, 27,550.08 and 11,580.16

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Solution

The fourth proportional to 19,960.96, 27,550.08 and 11,580.16 is: 15,982.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,960.96 : 27,550.08 = 11,580.16 : x
  2. Step 2: Convert to fraction form
    19,960.96/27,550.08 = 11,580.16/x
  3. Step 3: Cross multiply
    19,960.96x = 27,550.08 × 11,580.16
  4. Step 4: Simplify right side
    19,960.96x = 319,034,334.41
  5. Step 5: Solve for x
    x = 319,034,334.41/19,960.96
  6. Step 6: Final answer
    x = 15,982.92

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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.