Home / 28,349.32-42,530.12-8,629.44

Finding the Fourth Proportional to 28,349.32, 42,530.12 and 8,629.44

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Solution

The fourth proportional to 28,349.32, 42,530.12 and 8,629.44 is: 12,946.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,349.32 : 42,530.12 = 8,629.44 : x
  2. Step 2: Convert to fraction form
    28,349.32/42,530.12 = 8,629.44/x
  3. Step 3: Cross multiply
    28,349.32x = 42,530.12 × 8,629.44
  4. Step 4: Simplify right side
    28,349.32x = 367,011,118.73
  5. Step 5: Solve for x
    x = 367,011,118.73/28,349.32
  6. Step 6: Final answer
    x = 12,946.03

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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.