Home / 25,939.32-38,914.45-8,407.79

Finding the Fourth Proportional to 25,939.32, 38,914.45 and 8,407.79

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Solution

The fourth proportional to 25,939.32, 38,914.45 and 8,407.79 is: 12,613.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,939.32 : 38,914.45 = 8,407.79 : x
  2. Step 2: Convert to fraction form
    25,939.32/38,914.45 = 8,407.79/x
  3. Step 3: Cross multiply
    25,939.32x = 38,914.45 × 8,407.79
  4. Step 4: Simplify right side
    25,939.32x = 327,184,307.97
  5. Step 5: Solve for x
    x = 327,184,307.97/25,939.32
  6. Step 6: Final answer
    x = 12,613.45

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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.