Home / 18,937.85-28,406.66-5,790.17

Finding the Fourth Proportional to 18,937.85, 28,406.66 and 5,790.17

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Solution

The fourth proportional to 18,937.85, 28,406.66 and 5,790.17 is: 8,685.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,937.85 : 28,406.66 = 5,790.17 : x
  2. Step 2: Convert to fraction form
    18,937.85/28,406.66 = 5,790.17/x
  3. Step 3: Cross multiply
    18,937.85x = 28,406.66 × 5,790.17
  4. Step 4: Simplify right side
    18,937.85x = 164,479,361.58
  5. Step 5: Solve for x
    x = 164,479,361.58/18,937.85
  6. Step 6: Final answer
    x = 8,685.22

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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.