Home / 19,399.10-29,101.35-7,709.60

Finding the Fourth Proportional to 19,399.10, 29,101.35 and 7,709.60

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Solution

The fourth proportional to 19,399.10, 29,101.35 and 7,709.60 is: 11,565.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,399.10 : 29,101.35 = 7,709.60 : x
  2. Step 2: Convert to fraction form
    19,399.10/29,101.35 = 7,709.60/x
  3. Step 3: Cross multiply
    19,399.10x = 29,101.35 × 7,709.60
  4. Step 4: Simplify right side
    19,399.10x = 224,359,767.96
  5. Step 5: Solve for x
    x = 224,359,767.96/19,399.10
  6. Step 6: Final answer
    x = 11,565.47

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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.