Home / 30,356.20-45,534.30-29,189.80

Finding the Fourth Proportional to 30,356.20, 45,534.30 and 29,189.80

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Solution

The fourth proportional to 30,356.20, 45,534.30 and 29,189.80 is: 43,784.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,356.20 : 45,534.30 = 29,189.80 : x
  2. Step 2: Convert to fraction form
    30,356.20/45,534.30 = 29,189.80/x
  3. Step 3: Cross multiply
    30,356.20x = 45,534.30 × 29,189.80
  4. Step 4: Simplify right side
    30,356.20x = 1,329,137,110.14
  5. Step 5: Solve for x
    x = 1,329,137,110.14/30,356.20
  6. Step 6: Final answer
    x = 43,784.70

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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.