Home / 38,881.64-58,331.68-12,586.36

Finding the Fourth Proportional to 38,881.64, 58,331.68 and 12,586.36

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Solution

The fourth proportional to 38,881.64, 58,331.68 and 12,586.36 is: 18,882.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,881.64 : 58,331.68 = 12,586.36 : x
  2. Step 2: Convert to fraction form
    38,881.64/58,331.68 = 12,586.36/x
  3. Step 3: Cross multiply
    38,881.64x = 58,331.68 × 12,586.36
  4. Step 4: Simplify right side
    38,881.64x = 734,183,523.88
  5. Step 5: Solve for x
    x = 734,183,523.88/38,881.64
  6. Step 6: Final answer
    x = 18,882.52

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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.