Home / 30,487.83-45,736.14-9,429.60

Finding the Fourth Proportional to 30,487.83, 45,736.14 and 9,429.60

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Solution

The fourth proportional to 30,487.83, 45,736.14 and 9,429.60 is: 14,145.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,487.83 : 45,736.14 = 9,429.60 : x
  2. Step 2: Convert to fraction form
    30,487.83/45,736.14 = 9,429.60/x
  3. Step 3: Cross multiply
    30,487.83x = 45,736.14 × 9,429.60
  4. Step 4: Simplify right side
    30,487.83x = 431,273,712.62
  5. Step 5: Solve for x
    x = 431,273,712.62/30,487.83
  6. Step 6: Final answer
    x = 14,145.77

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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.