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Finding the Fourth Proportional to 25,590.96, 38,391.48 and 8,955.72

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Solution

The fourth proportional to 25,590.96, 38,391.48 and 8,955.72 is: 13,435.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,590.96 : 38,391.48 = 8,955.72 : x
  2. Step 2: Convert to fraction form
    25,590.96/38,391.48 = 8,955.72/x
  3. Step 3: Cross multiply
    25,590.96x = 38,391.48 × 8,955.72
  4. Step 4: Simplify right side
    25,590.96x = 343,823,345.27
  5. Step 5: Solve for x
    x = 343,823,345.27/25,590.96
  6. Step 6: Final answer
    x = 13,435.34

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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.