Home / 20,948.73-31,423.09-6,157.77

Finding the Fourth Proportional to 20,948.73, 31,423.09 and 6,157.77

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Solution

The fourth proportional to 20,948.73, 31,423.09 and 6,157.77 is: 9,236.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,948.73 : 31,423.09 = 6,157.77 : x
  2. Step 2: Convert to fraction form
    20,948.73/31,423.09 = 6,157.77/x
  3. Step 3: Cross multiply
    20,948.73x = 31,423.09 × 6,157.77
  4. Step 4: Simplify right side
    20,948.73x = 193,496,215.98
  5. Step 5: Solve for x
    x = 193,496,215.98/20,948.73
  6. Step 6: Final answer
    x = 9,236.66

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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.