Home / 19,740.88-29,619.52-8,641.85

Finding the Fourth Proportional to 19,740.88, 29,619.52 and 8,641.85

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Solution

The fourth proportional to 19,740.88, 29,619.52 and 8,641.85 is: 12,966.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,740.88 : 29,619.52 = 8,641.85 : x
  2. Step 2: Convert to fraction form
    19,740.88/29,619.52 = 8,641.85/x
  3. Step 3: Cross multiply
    19,740.88x = 29,619.52 × 8,641.85
  4. Step 4: Simplify right side
    19,740.88x = 255,967,501.36
  5. Step 5: Solve for x
    x = 255,967,501.36/19,740.88
  6. Step 6: Final answer
    x = 12,966.37

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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.