Home / 30,200.40-45,306.90-9,141.96

Finding the Fourth Proportional to 30,200.40, 45,306.90 and 9,141.96

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Solution

The fourth proportional to 30,200.40, 45,306.90 and 9,141.96 is: 13,714.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,200.40 : 45,306.90 = 9,141.96 : x
  2. Step 2: Convert to fraction form
    30,200.40/45,306.90 = 9,141.96/x
  3. Step 3: Cross multiply
    30,200.40x = 45,306.90 × 9,141.96
  4. Step 4: Simplify right side
    30,200.40x = 414,193,867.52
  5. Step 5: Solve for x
    x = 414,193,867.52/30,200.40
  6. Step 6: Final answer
    x = 13,714.85

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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.