Home / 19,561.30-29,342.07-4,770.34

Finding the Fourth Proportional to 19,561.30, 29,342.07 and 4,770.34

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Solution

The fourth proportional to 19,561.30, 29,342.07 and 4,770.34 is: 7,155.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,561.30 : 29,342.07 = 4,770.34 : x
  2. Step 2: Convert to fraction form
    19,561.30/29,342.07 = 4,770.34/x
  3. Step 3: Cross multiply
    19,561.30x = 29,342.07 × 4,770.34
  4. Step 4: Simplify right side
    19,561.30x = 139,971,650.20
  5. Step 5: Solve for x
    x = 139,971,650.20/19,561.30
  6. Step 6: Final answer
    x = 7,155.54

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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.