Home / 25,991.96-38,955.63-11,937.08

Finding the Fourth Proportional to 25,991.96, 38,955.63 and 11,937.08

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Solution

The fourth proportional to 25,991.96, 38,955.63 and 11,937.08 is: 17,890.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,991.96 : 38,955.63 = 11,937.08 : x
  2. Step 2: Convert to fraction form
    25,991.96/38,955.63 = 11,937.08/x
  3. Step 3: Cross multiply
    25,991.96x = 38,955.63 × 11,937.08
  4. Step 4: Simplify right side
    25,991.96x = 465,016,276.98
  5. Step 5: Solve for x
    x = 465,016,276.98/25,991.96
  6. Step 6: Final answer
    x = 17,890.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.