Home / 25,777.09-38,657.40-8,242.75

Finding the Fourth Proportional to 25,777.09, 38,657.40 and 8,242.75

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Solution

The fourth proportional to 25,777.09, 38,657.40 and 8,242.75 is: 12,361.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,777.09 : 38,657.40 = 8,242.75 : x
  2. Step 2: Convert to fraction form
    25,777.09/38,657.40 = 8,242.75/x
  3. Step 3: Cross multiply
    25,777.09x = 38,657.40 × 8,242.75
  4. Step 4: Simplify right side
    25,777.09x = 318,643,283.85
  5. Step 5: Solve for x
    x = 318,643,283.85/25,777.09
  6. Step 6: Final answer
    x = 12,361.49

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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.