Home / 25,880.28-38,820.66-14,187.12

Finding the Fourth Proportional to 25,880.28, 38,820.66 and 14,187.12

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Solution

The fourth proportional to 25,880.28, 38,820.66 and 14,187.12 is: 21,280.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,880.28 : 38,820.66 = 14,187.12 : x
  2. Step 2: Convert to fraction form
    25,880.28/38,820.66 = 14,187.12/x
  3. Step 3: Cross multiply
    25,880.28x = 38,820.66 × 14,187.12
  4. Step 4: Simplify right side
    25,880.28x = 550,753,361.90
  5. Step 5: Solve for x
    x = 550,753,361.90/25,880.28
  6. Step 6: Final answer
    x = 21,280.81

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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.