Home / 28,119.36-38,756.80-25,735.88

Finding the Fourth Proportional to 28,119.36, 38,756.80 and 25,735.88

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Solution

The fourth proportional to 28,119.36, 38,756.80 and 25,735.88 is: 35,471.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,119.36 : 38,756.80 = 25,735.88 : x
  2. Step 2: Convert to fraction form
    28,119.36/38,756.80 = 25,735.88/x
  3. Step 3: Cross multiply
    28,119.36x = 38,756.80 × 25,735.88
  4. Step 4: Simplify right side
    28,119.36x = 997,440,353.98
  5. Step 5: Solve for x
    x = 997,440,353.98/28,119.36
  6. Step 6: Final answer
    x = 35,471.66

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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.