Home / 19,790.89-29,688.28-5,751.04

Finding the Fourth Proportional to 19,790.89, 29,688.28 and 5,751.04

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Solution

The fourth proportional to 19,790.89, 29,688.28 and 5,751.04 is: 8,627.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,790.89 : 29,688.28 = 5,751.04 : x
  2. Step 2: Convert to fraction form
    19,790.89/29,688.28 = 5,751.04/x
  3. Step 3: Cross multiply
    19,790.89x = 29,688.28 × 5,751.04
  4. Step 4: Simplify right side
    19,790.89x = 170,738,500.19
  5. Step 5: Solve for x
    x = 170,738,500.19/19,790.89
  6. Step 6: Final answer
    x = 8,627.12

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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.