Home / 19,861.56-27,409.41-10,909.25

Finding the Fourth Proportional to 19,861.56, 27,409.41 and 10,909.25

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Solution

The fourth proportional to 19,861.56, 27,409.41 and 10,909.25 is: 15,055.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,861.56 : 27,409.41 = 10,909.25 : x
  2. Step 2: Convert to fraction form
    19,861.56/27,409.41 = 10,909.25/x
  3. Step 3: Cross multiply
    19,861.56x = 27,409.41 × 10,909.25
  4. Step 4: Simplify right side
    19,861.56x = 299,015,969.00
  5. Step 5: Solve for x
    x = 299,015,969.00/19,861.56
  6. Step 6: Final answer
    x = 15,055.01

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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.