Home / 30,331.42-41,835.08-20,103.95

Finding the Fourth Proportional to 30,331.42, 41,835.08 and 20,103.95

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Solution

The fourth proportional to 30,331.42, 41,835.08 and 20,103.95 is: 27,728.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,331.42 : 41,835.08 = 20,103.95 : x
  2. Step 2: Convert to fraction form
    30,331.42/41,835.08 = 20,103.95/x
  3. Step 3: Cross multiply
    30,331.42x = 41,835.08 × 20,103.95
  4. Step 4: Simplify right side
    30,331.42x = 841,050,360.63
  5. Step 5: Solve for x
    x = 841,050,360.63/30,331.42
  6. Step 6: Final answer
    x = 27,728.69

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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.