Home / 25,403.43-38,118.16-12,091.49

Finding the Fourth Proportional to 25,403.43, 38,118.16 and 12,091.49

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Solution

The fourth proportional to 25,403.43, 38,118.16 and 12,091.49 is: 18,143.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,403.43 : 38,118.16 = 12,091.49 : x
  2. Step 2: Convert to fraction form
    25,403.43/38,118.16 = 12,091.49/x
  3. Step 3: Cross multiply
    25,403.43x = 38,118.16 × 12,091.49
  4. Step 4: Simplify right side
    25,403.43x = 460,905,317.93
  5. Step 5: Solve for x
    x = 460,905,317.93/25,403.43
  6. Step 6: Final answer
    x = 18,143.43

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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.