Home / 31,457.45-47,144.23-11,716.13

Finding the Fourth Proportional to 31,457.45, 47,144.23 and 11,716.13

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Solution

The fourth proportional to 31,457.45, 47,144.23 and 11,716.13 is: 17,558.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,457.45 : 47,144.23 = 11,716.13 : x
  2. Step 2: Convert to fraction form
    31,457.45/47,144.23 = 11,716.13/x
  3. Step 3: Cross multiply
    31,457.45x = 47,144.23 × 11,716.13
  4. Step 4: Simplify right side
    31,457.45x = 552,347,927.43
  5. Step 5: Solve for x
    x = 552,347,927.43/31,457.45
  6. Step 6: Final answer
    x = 17,558.57

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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.