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Finding the Fourth Proportional to 25,998.48, 38,999.40 and 8,468.40

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Solution

The fourth proportional to 25,998.48, 38,999.40 and 8,468.40 is: 12,703.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,998.48 : 38,999.40 = 8,468.40 : x
  2. Step 2: Convert to fraction form
    25,998.48/38,999.40 = 8,468.40/x
  3. Step 3: Cross multiply
    25,998.48x = 38,999.40 × 8,468.40
  4. Step 4: Simplify right side
    25,998.48x = 330,262,518.96
  5. Step 5: Solve for x
    x = 330,262,518.96/25,998.48
  6. Step 6: Final answer
    x = 12,703.15

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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.