Home / 20,880.89-31,318.29-6,085.83

Finding the Fourth Proportional to 20,880.89, 31,318.29 and 6,085.83

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Solution

The fourth proportional to 20,880.89, 31,318.29 and 6,085.83 is: 9,127.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,880.89 : 31,318.29 = 6,085.83 : x
  2. Step 2: Convert to fraction form
    20,880.89/31,318.29 = 6,085.83/x
  3. Step 3: Cross multiply
    20,880.89x = 31,318.29 × 6,085.83
  4. Step 4: Simplify right side
    20,880.89x = 190,597,758.40
  5. Step 5: Solve for x
    x = 190,597,758.40/20,880.89
  6. Step 6: Final answer
    x = 9,127.86

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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.