Home / 20,730.41-31,095.60-5,148.03

Finding the Fourth Proportional to 20,730.41, 31,095.60 and 5,148.03

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Solution

The fourth proportional to 20,730.41, 31,095.60 and 5,148.03 is: 7,722.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,730.41 : 31,095.60 = 5,148.03 : x
  2. Step 2: Convert to fraction form
    20,730.41/31,095.60 = 5,148.03/x
  3. Step 3: Cross multiply
    20,730.41x = 31,095.60 × 5,148.03
  4. Step 4: Simplify right side
    20,730.41x = 160,081,081.67
  5. Step 5: Solve for x
    x = 160,081,081.67/20,730.41
  6. Step 6: Final answer
    x = 7,722.04

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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.