Home / 30,472.20-45,712.86-9,700.36

Finding the Fourth Proportional to 30,472.20, 45,712.86 and 9,700.36

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Solution

The fourth proportional to 30,472.20, 45,712.86 and 9,700.36 is: 14,551.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,472.20 : 45,712.86 = 9,700.36 : x
  2. Step 2: Convert to fraction form
    30,472.20/45,712.86 = 9,700.36/x
  3. Step 3: Cross multiply
    30,472.20x = 45,712.86 × 9,700.36
  4. Step 4: Simplify right side
    30,472.20x = 443,431,198.63
  5. Step 5: Solve for x
    x = 443,431,198.63/30,472.20
  6. Step 6: Final answer
    x = 14,551.99

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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.