Home / 30,284.28-45,433.68-9,507.78

Finding the Fourth Proportional to 30,284.28, 45,433.68 and 9,507.78

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Solution

The fourth proportional to 30,284.28, 45,433.68 and 9,507.78 is: 14,263.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,284.28 : 45,433.68 = 9,507.78 : x
  2. Step 2: Convert to fraction form
    30,284.28/45,433.68 = 9,507.78/x
  3. Step 3: Cross multiply
    30,284.28x = 45,433.68 × 9,507.78
  4. Step 4: Simplify right side
    30,284.28x = 431,973,434.03
  5. Step 5: Solve for x
    x = 431,973,434.03/30,284.28
  6. Step 6: Final answer
    x = 14,263.95

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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.