Home / 31,228.64-46,861.40-11,520.96

Finding the Fourth Proportional to 31,228.64, 46,861.40 and 11,520.96

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Solution

The fourth proportional to 31,228.64, 46,861.40 and 11,520.96 is: 17,288.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,228.64 : 46,861.40 = 11,520.96 : x
  2. Step 2: Convert to fraction form
    31,228.64/46,861.40 = 11,520.96/x
  3. Step 3: Cross multiply
    31,228.64x = 46,861.40 × 11,520.96
  4. Step 4: Simplify right side
    31,228.64x = 539,888,314.94
  5. Step 5: Solve for x
    x = 539,888,314.94/31,228.64
  6. Step 6: Final answer
    x = 17,288.24

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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.