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Finding the Fourth Proportional to 20,095.92, 30,120.48 and 7,607.94

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Solution

The fourth proportional to 20,095.92, 30,120.48 and 7,607.94 is: 11,403.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,095.92 : 30,120.48 = 7,607.94 : x
  2. Step 2: Convert to fraction form
    20,095.92/30,120.48 = 7,607.94/x
  3. Step 3: Cross multiply
    20,095.92x = 30,120.48 × 7,607.94
  4. Step 4: Simplify right side
    20,095.92x = 229,154,804.61
  5. Step 5: Solve for x
    x = 229,154,804.61/20,095.92
  6. Step 6: Final answer
    x = 11,403.05

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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.