Home / 31,215.75-46,828.29-11,492.79

Finding the Fourth Proportional to 31,215.75, 46,828.29 and 11,492.79

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Solution

The fourth proportional to 31,215.75, 46,828.29 and 11,492.79 is: 17,240.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,215.75 : 46,828.29 = 11,492.79 : x
  2. Step 2: Convert to fraction form
    31,215.75/46,828.29 = 11,492.79/x
  3. Step 3: Cross multiply
    31,215.75x = 46,828.29 × 11,492.79
  4. Step 4: Simplify right side
    31,215.75x = 538,187,703.03
  5. Step 5: Solve for x
    x = 538,187,703.03/31,215.75
  6. Step 6: Final answer
    x = 17,240.90

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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.