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Finding the Fourth Proportional to 30,562.88, 45,932.88 and 20,240.24

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Solution

The fourth proportional to 30,562.88, 45,932.88 and 20,240.24 is: 30,419.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,562.88 : 45,932.88 = 20,240.24 : x
  2. Step 2: Convert to fraction form
    30,562.88/45,932.88 = 20,240.24/x
  3. Step 3: Cross multiply
    30,562.88x = 45,932.88 × 20,240.24
  4. Step 4: Simplify right side
    30,562.88x = 929,692,515.09
  5. Step 5: Solve for x
    x = 929,692,515.09/30,562.88
  6. Step 6: Final answer
    x = 30,419.01

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1.5x scale

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.