Home / 31,461.45-47,150.24-11,720.13

Finding the Fourth Proportional to 31,461.45, 47,150.24 and 11,720.13

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Solution

The fourth proportional to 31,461.45, 47,150.24 and 11,720.13 is: 17,564.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,461.45 : 47,150.24 = 11,720.13 : x
  2. Step 2: Convert to fraction form
    31,461.45/47,150.24 = 11,720.13/x
  3. Step 3: Cross multiply
    31,461.45x = 47,150.24 × 11,720.13
  4. Step 4: Simplify right side
    31,461.45x = 552,606,883.73
  5. Step 5: Solve for x
    x = 552,606,883.73/31,461.45
  6. Step 6: Final answer
    x = 17,564.57

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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.