Home / 30,282.05-45,192.84-28,276.70

Finding the Fourth Proportional to 30,282.05, 45,192.84 and 28,276.70

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Solution

The fourth proportional to 30,282.05, 45,192.84 and 28,276.70 is: 42,200.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,282.05 : 45,192.84 = 28,276.70 : x
  2. Step 2: Convert to fraction form
    30,282.05/45,192.84 = 28,276.70/x
  3. Step 3: Cross multiply
    30,282.05x = 45,192.84 × 28,276.70
  4. Step 4: Simplify right side
    30,282.05x = 1,277,904,046.83
  5. Step 5: Solve for x
    x = 1,277,904,046.83/30,282.05
  6. Step 6: Final answer
    x = 42,200.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.