Home / 32,660.12-49,011.96-20,981.72

Finding the Fourth Proportional to 32,660.12, 49,011.96 and 20,981.72

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Solution

The fourth proportional to 32,660.12, 49,011.96 and 20,981.72 is: 31,486.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,660.12 : 49,011.96 = 20,981.72 : x
  2. Step 2: Convert to fraction form
    32,660.12/49,011.96 = 20,981.72/x
  3. Step 3: Cross multiply
    32,660.12x = 49,011.96 × 20,981.72
  4. Step 4: Simplify right side
    32,660.12x = 1,028,355,221.37
  5. Step 5: Solve for x
    x = 1,028,355,221.37/32,660.12
  6. Step 6: Final answer
    x = 31,486.57

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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.