Home / 19,928.87-27,501.92-11,971.23

Finding the Fourth Proportional to 19,928.87, 27,501.92 and 11,971.23

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Solution

The fourth proportional to 19,928.87, 27,501.92 and 11,971.23 is: 16,520.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928.87 : 27,501.92 = 11,971.23 : x
  2. Step 2: Convert to fraction form
    19,928.87/27,501.92 = 11,971.23/x
  3. Step 3: Cross multiply
    19,928.87x = 27,501.92 × 11,971.23
  4. Step 4: Simplify right side
    19,928.87x = 329,231,809.76
  5. Step 5: Solve for x
    x = 329,231,809.76/19,928.87
  6. Step 6: Final answer
    x = 16,520.35

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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.