Home / 31,826.45-47,651.90-21,281.87

Finding the Fourth Proportional to 31,826.45, 47,651.90 and 21,281.87

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Solution

The fourth proportional to 31,826.45, 47,651.90 and 21,281.87 is: 31,864.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,826.45 : 47,651.90 = 21,281.87 : x
  2. Step 2: Convert to fraction form
    31,826.45/47,651.90 = 21,281.87/x
  3. Step 3: Cross multiply
    31,826.45x = 47,651.90 × 21,281.87
  4. Step 4: Simplify right side
    31,826.45x = 1,014,121,553.77
  5. Step 5: Solve for x
    x = 1,014,121,553.77/31,826.45
  6. Step 6: Final answer
    x = 31,864.11

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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.