Home / 31,900.13-47,834.10-18,577.43

Finding the Fourth Proportional to 31,900.13, 47,834.10 and 18,577.43

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Solution

The fourth proportional to 31,900.13, 47,834.10 and 18,577.43 is: 27,856.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,900.13 : 47,834.10 = 18,577.43 : x
  2. Step 2: Convert to fraction form
    31,900.13/47,834.10 = 18,577.43/x
  3. Step 3: Cross multiply
    31,900.13x = 47,834.10 × 18,577.43
  4. Step 4: Simplify right side
    31,900.13x = 888,634,644.36
  5. Step 5: Solve for x
    x = 888,634,644.36/31,900.13
  6. Step 6: Final answer
    x = 27,856.77

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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.