Home / 45,632.90-68,448.32-20,654.86

Finding the Fourth Proportional to 45,632.90, 68,448.32 and 20,654.86

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Solution

The fourth proportional to 45,632.90, 68,448.32 and 20,654.86 is: 30,981.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,632.90 : 68,448.32 = 20,654.86 : x
  2. Step 2: Convert to fraction form
    45,632.90/68,448.32 = 20,654.86/x
  3. Step 3: Cross multiply
    45,632.90x = 68,448.32 × 20,654.86
  4. Step 4: Simplify right side
    45,632.90x = 1,413,790,466.84
  5. Step 5: Solve for x
    x = 1,413,790,466.84/45,632.90
  6. Step 6: Final answer
    x = 30,981.82

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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.