Home / 30,359.40-45,517.18-20,473.96

Finding the Fourth Proportional to 30,359.40, 45,517.18 and 20,473.96

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Solution

The fourth proportional to 30,359.40, 45,517.18 and 20,473.96 is: 30,696.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,359.40 : 45,517.18 = 20,473.96 : x
  2. Step 2: Convert to fraction form
    30,359.40/45,517.18 = 20,473.96/x
  3. Step 3: Cross multiply
    30,359.40x = 45,517.18 × 20,473.96
  4. Step 4: Simplify right side
    30,359.40x = 931,916,922.63
  5. Step 5: Solve for x
    x = 931,916,922.63/30,359.40
  6. Step 6: Final answer
    x = 30,696.16

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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.