Home / 28,025.88-38,675.71-15,450.90

Finding the Fourth Proportional to 28,025.88, 38,675.71 and 15,450.90

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Solution

The fourth proportional to 28,025.88, 38,675.71 and 15,450.90 is: 21,322.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,025.88 : 38,675.71 = 15,450.90 : x
  2. Step 2: Convert to fraction form
    28,025.88/38,675.71 = 15,450.90/x
  3. Step 3: Cross multiply
    28,025.88x = 38,675.71 × 15,450.90
  4. Step 4: Simplify right side
    28,025.88x = 597,574,527.64
  5. Step 5: Solve for x
    x = 597,574,527.64/28,025.88
  6. Step 6: Final answer
    x = 21,322.24

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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.