Home / 30,226.16-45,284.87-28,447.20

Finding the Fourth Proportional to 30,226.16, 45,284.87 and 28,447.20

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Solution

The fourth proportional to 30,226.16, 45,284.87 and 28,447.20 is: 42,619.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,226.16 : 45,284.87 = 28,447.20 : x
  2. Step 2: Convert to fraction form
    30,226.16/45,284.87 = 28,447.20/x
  3. Step 3: Cross multiply
    30,226.16x = 45,284.87 × 28,447.20
  4. Step 4: Simplify right side
    30,226.16x = 1,288,227,824.98
  5. Step 5: Solve for x
    x = 1,288,227,824.98/30,226.16
  6. Step 6: Final answer
    x = 42,619.63

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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.