Home / 31,110.40-46,660.20-11,378.80

Finding the Fourth Proportional to 31,110.40, 46,660.20 and 11,378.80

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Solution

The fourth proportional to 31,110.40, 46,660.20 and 11,378.80 is: 17,066.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,110.40 : 46,660.20 = 11,378.80 : x
  2. Step 2: Convert to fraction form
    31,110.40/46,660.20 = 11,378.80/x
  3. Step 3: Cross multiply
    31,110.40x = 46,660.20 × 11,378.80
  4. Step 4: Simplify right side
    31,110.40x = 530,937,083.76
  5. Step 5: Solve for x
    x = 530,937,083.76/31,110.40
  6. Step 6: Final answer
    x = 17,066.22

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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.