Home / 19,470.85-29,209.09-6,139.32

Finding the Fourth Proportional to 19,470.85, 29,209.09 and 6,139.32

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Solution

The fourth proportional to 19,470.85, 29,209.09 and 6,139.32 is: 9,209.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,470.85 : 29,209.09 = 6,139.32 : x
  2. Step 2: Convert to fraction form
    19,470.85/29,209.09 = 6,139.32/x
  3. Step 3: Cross multiply
    19,470.85x = 29,209.09 × 6,139.32
  4. Step 4: Simplify right side
    19,470.85x = 179,323,945.10
  5. Step 5: Solve for x
    x = 179,323,945.10/19,470.85
  6. Step 6: Final answer
    x = 9,209.87

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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.