Home / 28,519.66-42,780.08-8,798.23

Finding the Fourth Proportional to 28,519.66, 42,780.08 and 8,798.23

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Solution

The fourth proportional to 28,519.66, 42,780.08 and 8,798.23 is: 13,197.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,519.66 : 42,780.08 = 8,798.23 : x
  2. Step 2: Convert to fraction form
    28,519.66/42,780.08 = 8,798.23/x
  3. Step 3: Cross multiply
    28,519.66x = 42,780.08 × 8,798.23
  4. Step 4: Simplify right side
    28,519.66x = 376,388,983.26
  5. Step 5: Solve for x
    x = 376,388,983.26/28,519.66
  6. Step 6: Final answer
    x = 13,197.53

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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.