Home / 38,782.32-58,190.76-20,310

Finding the Fourth Proportional to 38,782.32, 58,190.76 and 20,310

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Solution

The fourth proportional to 38,782.32, 58,190.76 and 20,310 is: 30,474.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,782.32 : 58,190.76 = 20,310 : x
  2. Step 2: Convert to fraction form
    38,782.32/58,190.76 = 20,310/x
  3. Step 3: Cross multiply
    38,782.32x = 58,190.76 × 20,310
  4. Step 4: Simplify right side
    38,782.32x = 1,181,854,335.60
  5. Step 5: Solve for x
    x = 1,181,854,335.60/38,782.32
  6. Step 6: Final answer
    x = 30,474.05

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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.