Home / 31,228.62-46,842.81-12,517.02

Finding the Fourth Proportional to 31,228.62, 46,842.81 and 12,517.02

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Solution

The fourth proportional to 31,228.62, 46,842.81 and 12,517.02 is: 18,775.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,228.62 : 46,842.81 = 12,517.02 : x
  2. Step 2: Convert to fraction form
    31,228.62/46,842.81 = 12,517.02/x
  3. Step 3: Cross multiply
    31,228.62x = 46,842.81 × 12,517.02
  4. Step 4: Simplify right side
    31,228.62x = 586,332,389.63
  5. Step 5: Solve for x
    x = 586,332,389.63/31,228.62
  6. Step 6: Final answer
    x = 18,775.48

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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.