Home / 30,080.77-45,120.61-10,358.89

Finding the Fourth Proportional to 30,080.77, 45,120.61 and 10,358.89

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Solution

The fourth proportional to 30,080.77, 45,120.61 and 10,358.89 is: 15,538.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,080.77 : 45,120.61 = 10,358.89 : x
  2. Step 2: Convert to fraction form
    30,080.77/45,120.61 = 10,358.89/x
  3. Step 3: Cross multiply
    30,080.77x = 45,120.61 × 10,358.89
  4. Step 4: Simplify right side
    30,080.77x = 467,399,435.72
  5. Step 5: Solve for x
    x = 467,399,435.72/30,080.77
  6. Step 6: Final answer
    x = 15,538.15

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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.