Home / 30,089.76-45,105.18-12,564.60

Finding the Fourth Proportional to 30,089.76, 45,105.18 and 12,564.60

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Solution

The fourth proportional to 30,089.76, 45,105.18 and 12,564.60 is: 18,834.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,089.76 : 45,105.18 = 12,564.60 : x
  2. Step 2: Convert to fraction form
    30,089.76/45,105.18 = 12,564.60/x
  3. Step 3: Cross multiply
    30,089.76x = 45,105.18 × 12,564.60
  4. Step 4: Simplify right side
    30,089.76x = 566,728,544.63
  5. Step 5: Solve for x
    x = 566,728,544.63/30,089.76
  6. Step 6: Final answer
    x = 18,834.60

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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.