Home / 30,276.25-45,421.67-9,499.75

Finding the Fourth Proportional to 30,276.25, 45,421.67 and 9,499.75

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Solution

The fourth proportional to 30,276.25, 45,421.67 and 9,499.75 is: 14,251.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,276.25 : 45,421.67 = 9,499.75 : x
  2. Step 2: Convert to fraction form
    30,276.25/45,421.67 = 9,499.75/x
  3. Step 3: Cross multiply
    30,276.25x = 45,421.67 × 9,499.75
  4. Step 4: Simplify right side
    30,276.25x = 431,494,509.58
  5. Step 5: Solve for x
    x = 431,494,509.58/30,276.25
  6. Step 6: Final answer
    x = 14,251.91

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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.