Home / 25,468.65-38,197.91-12,815.03

Finding the Fourth Proportional to 25,468.65, 38,197.91 and 12,815.03

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Solution

The fourth proportional to 25,468.65, 38,197.91 and 12,815.03 is: 19,220.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,468.65 : 38,197.91 = 12,815.03 : x
  2. Step 2: Convert to fraction form
    25,468.65/38,197.91 = 12,815.03/x
  3. Step 3: Cross multiply
    25,468.65x = 38,197.91 × 12,815.03
  4. Step 4: Simplify right side
    25,468.65x = 489,507,370.91
  5. Step 5: Solve for x
    x = 489,507,370.91/25,468.65
  6. Step 6: Final answer
    x = 19,220.00

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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.