Home / 40,688.65-60,983.76-20,956.44

Finding the Fourth Proportional to 40,688.65, 60,983.76 and 20,956.44

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Solution

The fourth proportional to 40,688.65, 60,983.76 and 20,956.44 is: 31,409.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,688.65 : 60,983.76 = 20,956.44 : x
  2. Step 2: Convert to fraction form
    40,688.65/60,983.76 = 20,956.44/x
  3. Step 3: Cross multiply
    40,688.65x = 60,983.76 × 20,956.44
  4. Step 4: Simplify right side
    40,688.65x = 1,278,002,814.69
  5. Step 5: Solve for x
    x = 1,278,002,814.69/40,688.65
  6. Step 6: Final answer
    x = 31,409.32

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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.