Home / 25,515.32-38,273.74-21,107.41

Finding the Fourth Proportional to 25,515.32, 38,273.74 and 21,107.41

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Solution

The fourth proportional to 25,515.32, 38,273.74 and 21,107.41 is: 31,661.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,515.32 : 38,273.74 = 21,107.41 : x
  2. Step 2: Convert to fraction form
    25,515.32/38,273.74 = 21,107.41/x
  3. Step 3: Cross multiply
    25,515.32x = 38,273.74 × 21,107.41
  4. Step 4: Simplify right side
    25,515.32x = 807,859,373.96
  5. Step 5: Solve for x
    x = 807,859,373.96/25,515.32
  6. Step 6: Final answer
    x = 31,661.74

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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.