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Finding the Fourth Proportional to 30,277.20, 45,415.80 and 27,652.80

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Solution

The fourth proportional to 30,277.20, 45,415.80 and 27,652.80 is: 41,479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,277.20 : 45,415.80 = 27,652.80 : x
  2. Step 2: Convert to fraction form
    30,277.20/45,415.80 = 27,652.80/x
  3. Step 3: Cross multiply
    30,277.20x = 45,415.80 × 27,652.80
  4. Step 4: Simplify right side
    30,277.20x = 1,255,874,034.24
  5. Step 5: Solve for x
    x = 1,255,874,034.24/30,277.20
  6. Step 6: Final answer
    x = 41,479.20

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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.