Home / 20,718.67-31,078.30-5,927.60

Finding the Fourth Proportional to 20,718.67, 31,078.30 and 5,927.60

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Solution

The fourth proportional to 20,718.67, 31,078.30 and 5,927.60 is: 8,891.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718.67 : 31,078.30 = 5,927.60 : x
  2. Step 2: Convert to fraction form
    20,718.67/31,078.30 = 5,927.60/x
  3. Step 3: Cross multiply
    20,718.67x = 31,078.30 × 5,927.60
  4. Step 4: Simplify right side
    20,718.67x = 184,219,572.47
  5. Step 5: Solve for x
    x = 184,219,572.47/20,718.67
  6. Step 6: Final answer
    x = 8,891.48

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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.