Home / 30,043.31-45,029.57-12,262.86

Finding the Fourth Proportional to 30,043.31, 45,029.57 and 12,262.86

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Solution

The fourth proportional to 30,043.31, 45,029.57 and 12,262.86 is: 18,379.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,043.31 : 45,029.57 = 12,262.86 : x
  2. Step 2: Convert to fraction form
    30,043.31/45,029.57 = 12,262.86/x
  3. Step 3: Cross multiply
    30,043.31x = 45,029.57 × 12,262.86
  4. Step 4: Simplify right side
    30,043.31x = 552,191,251.46
  5. Step 5: Solve for x
    x = 552,191,251.46/30,043.31
  6. Step 6: Final answer
    x = 18,379.84

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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.