Home / 20,847.49-31,272.15-6,807.41

Finding the Fourth Proportional to 20,847.49, 31,272.15 and 6,807.41

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Solution

The fourth proportional to 20,847.49, 31,272.15 and 6,807.41 is: 10,211.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,847.49 : 31,272.15 = 6,807.41 : x
  2. Step 2: Convert to fraction form
    20,847.49/31,272.15 = 6,807.41/x
  3. Step 3: Cross multiply
    20,847.49x = 31,272.15 × 6,807.41
  4. Step 4: Simplify right side
    20,847.49x = 212,882,156.23
  5. Step 5: Solve for x
    x = 212,882,156.23/20,847.49
  6. Step 6: Final answer
    x = 10,211.40

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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.