Home / 31,586.30-47,442.33-19,761.01

Finding the Fourth Proportional to 31,586.30, 47,442.33 and 19,761.01

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Solution

The fourth proportional to 31,586.30, 47,442.33 and 19,761.01 is: 29,680.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,586.30 : 47,442.33 = 19,761.01 : x
  2. Step 2: Convert to fraction form
    31,586.30/47,442.33 = 19,761.01/x
  3. Step 3: Cross multiply
    31,586.30x = 47,442.33 × 19,761.01
  4. Step 4: Simplify right side
    31,586.30x = 937,508,561.39
  5. Step 5: Solve for x
    x = 937,508,561.39/31,586.30
  6. Step 6: Final answer
    x = 29,680.86

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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.