Home / 30,348.64-45,523.68-9,289.12

Finding the Fourth Proportional to 30,348.64, 45,523.68 and 9,289.12

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Solution

The fourth proportional to 30,348.64, 45,523.68 and 9,289.12 is: 13,933.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,348.64 : 45,523.68 = 9,289.12 : x
  2. Step 2: Convert to fraction form
    30,348.64/45,523.68 = 9,289.12/x
  3. Step 3: Cross multiply
    30,348.64x = 45,523.68 × 9,289.12
  4. Step 4: Simplify right side
    30,348.64x = 422,874,926.36
  5. Step 5: Solve for x
    x = 422,874,926.36/30,348.64
  6. Step 6: Final answer
    x = 13,933.90

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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.