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Finding the Fourth Proportional to 30,037.20, 45,059.96 and 10,313.20

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Solution

The fourth proportional to 30,037.20, 45,059.96 and 10,313.20 is: 15,471.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,037.20 : 45,059.96 = 10,313.20 : x
  2. Step 2: Convert to fraction form
    30,037.20/45,059.96 = 10,313.20/x
  3. Step 3: Cross multiply
    30,037.20x = 45,059.96 × 10,313.20
  4. Step 4: Simplify right side
    30,037.20x = 464,712,379.47
  5. Step 5: Solve for x
    x = 464,712,379.47/30,037.20
  6. Step 6: Final answer
    x = 15,471.23

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.