Home / 35,118.35-48,459.35-20,778.61

Finding the Fourth Proportional to 35,118.35, 48,459.35 and 20,778.61

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Solution

The fourth proportional to 35,118.35, 48,459.35 and 20,778.61 is: 28,672.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,118.35 : 48,459.35 = 20,778.61 : x
  2. Step 2: Convert to fraction form
    35,118.35/48,459.35 = 20,778.61/x
  3. Step 3: Cross multiply
    35,118.35x = 48,459.35 × 20,778.61
  4. Step 4: Simplify right side
    35,118.35x = 1,006,917,830.61
  5. Step 5: Solve for x
    x = 1,006,917,830.61/35,118.35
  6. Step 6: Final answer
    x = 28,672.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.