Home / 25,896.40-38,851.80-11,112.40

Finding the Fourth Proportional to 25,896.40, 38,851.80 and 11,112.40

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Solution

The fourth proportional to 25,896.40, 38,851.80 and 11,112.40 is: 16,671.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,896.40 : 38,851.80 = 11,112.40 : x
  2. Step 2: Convert to fraction form
    25,896.40/38,851.80 = 11,112.40/x
  3. Step 3: Cross multiply
    25,896.40x = 38,851.80 × 11,112.40
  4. Step 4: Simplify right side
    25,896.40x = 431,736,742.32
  5. Step 5: Solve for x
    x = 431,736,742.32/25,896.40
  6. Step 6: Final answer
    x = 16,671.69

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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.