Home / 31,248.96-46,905.84-20,932.80

Finding the Fourth Proportional to 31,248.96, 46,905.84 and 20,932.80

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Solution

The fourth proportional to 31,248.96, 46,905.84 and 20,932.80 is: 31,420.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,248.96 : 46,905.84 = 20,932.80 : x
  2. Step 2: Convert to fraction form
    31,248.96/46,905.84 = 20,932.80/x
  3. Step 3: Cross multiply
    31,248.96x = 46,905.84 × 20,932.80
  4. Step 4: Simplify right side
    31,248.96x = 981,870,567.55
  5. Step 5: Solve for x
    x = 981,870,567.55/31,248.96
  6. Step 6: Final answer
    x = 31,420.90

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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.