Home / 20,047.43-30,070.82-6,899.92

Finding the Fourth Proportional to 20,047.43, 30,070.82 and 6,899.92

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Solution

The fourth proportional to 20,047.43, 30,070.82 and 6,899.92 is: 10,349.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,047.43 : 30,070.82 = 6,899.92 : x
  2. Step 2: Convert to fraction form
    20,047.43/30,070.82 = 6,899.92/x
  3. Step 3: Cross multiply
    20,047.43x = 30,070.82 × 6,899.92
  4. Step 4: Simplify right side
    20,047.43x = 207,486,252.33
  5. Step 5: Solve for x
    x = 207,486,252.33/20,047.43
  6. Step 6: Final answer
    x = 10,349.77

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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.