Home / 34,529.76-47,649.33-20,379.87

Finding the Fourth Proportional to 34,529.76, 47,649.33 and 20,379.87

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Solution

The fourth proportional to 34,529.76, 47,649.33 and 20,379.87 is: 28,123.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,529.76 : 47,649.33 = 20,379.87 : x
  2. Step 2: Convert to fraction form
    34,529.76/47,649.33 = 20,379.87/x
  3. Step 3: Cross multiply
    34,529.76x = 47,649.33 × 20,379.87
  4. Step 4: Simplify right side
    34,529.76x = 971,087,150.99
  5. Step 5: Solve for x
    x = 971,087,150.99/34,529.76
  6. Step 6: Final answer
    x = 28,123.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.