Home / 20,879.81-31,313.57-6,084.76

Finding the Fourth Proportional to 20,879.81, 31,313.57 and 6,084.76

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Solution

The fourth proportional to 20,879.81, 31,313.57 and 6,084.76 is: 9,125.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,879.81 : 31,313.57 = 6,084.76 : x
  2. Step 2: Convert to fraction form
    20,879.81/31,313.57 = 6,084.76/x
  3. Step 3: Cross multiply
    20,879.81x = 31,313.57 × 6,084.76
  4. Step 4: Simplify right side
    20,879.81x = 190,535,558.19
  5. Step 5: Solve for x
    x = 190,535,558.19/20,879.81
  6. Step 6: Final answer
    x = 9,125.35

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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.