Home / 20,710.68-31,060.80-5,919.67

Finding the Fourth Proportional to 20,710.68, 31,060.80 and 5,919.67

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Solution

The fourth proportional to 20,710.68, 31,060.80 and 5,919.67 is: 8,878.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710.68 : 31,060.80 = 5,919.67 : x
  2. Step 2: Convert to fraction form
    20,710.68/31,060.80 = 5,919.67/x
  3. Step 3: Cross multiply
    20,710.68x = 31,060.80 × 5,919.67
  4. Step 4: Simplify right side
    20,710.68x = 183,869,685.94
  5. Step 5: Solve for x
    x = 183,869,685.94/20,710.68
  6. Step 6: Final answer
    x = 8,878.02

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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.