Home / 30,063.36-45,103.68-9,289.92

Finding the Fourth Proportional to 30,063.36, 45,103.68 and 9,289.92

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Solution

The fourth proportional to 30,063.36, 45,103.68 and 9,289.92 is: 13,937.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,063.36 : 45,103.68 = 9,289.92 : x
  2. Step 2: Convert to fraction form
    30,063.36/45,103.68 = 9,289.92/x
  3. Step 3: Cross multiply
    30,063.36x = 45,103.68 × 9,289.92
  4. Step 4: Simplify right side
    30,063.36x = 419,009,578.91
  5. Step 5: Solve for x
    x = 419,009,578.91/30,063.36
  6. Step 6: Final answer
    x = 13,937.55

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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.