Home / 19,641.47-29,404.31-12,965.65

Finding the Fourth Proportional to 19,641.47, 29,404.31 and 12,965.65

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Solution

The fourth proportional to 19,641.47, 29,404.31 and 12,965.65 is: 19,410.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,641.47 : 29,404.31 = 12,965.65 : x
  2. Step 2: Convert to fraction form
    19,641.47/29,404.31 = 12,965.65/x
  3. Step 3: Cross multiply
    19,641.47x = 29,404.31 × 12,965.65
  4. Step 4: Simplify right side
    19,641.47x = 381,245,991.95
  5. Step 5: Solve for x
    x = 381,245,991.95/19,641.47
  6. Step 6: Final answer
    x = 19,410.26

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1.5x scale

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.