Home / 31,478.76-47,226.31-13,944.42

Finding the Fourth Proportional to 31,478.76, 47,226.31 and 13,944.42

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Solution

The fourth proportional to 31,478.76, 47,226.31 and 13,944.42 is: 20,920.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,478.76 : 47,226.31 = 13,944.42 : x
  2. Step 2: Convert to fraction form
    31,478.76/47,226.31 = 13,944.42/x
  3. Step 3: Cross multiply
    31,478.76x = 47,226.31 × 13,944.42
  4. Step 4: Simplify right side
    31,478.76x = 658,543,466.83
  5. Step 5: Solve for x
    x = 658,543,466.83/31,478.76
  6. Step 6: Final answer
    x = 20,920.25

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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.