Home / 28,240.68-42,362.82-9,519.18

Finding the Fourth Proportional to 28,240.68, 42,362.82 and 9,519.18

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Solution

The fourth proportional to 28,240.68, 42,362.82 and 9,519.18 is: 14,279.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,240.68 : 42,362.82 = 9,519.18 : x
  2. Step 2: Convert to fraction form
    28,240.68/42,362.82 = 9,519.18/x
  3. Step 3: Cross multiply
    28,240.68x = 42,362.82 × 9,519.18
  4. Step 4: Simplify right side
    28,240.68x = 403,259,308.89
  5. Step 5: Solve for x
    x = 403,259,308.89/28,240.68
  6. Step 6: Final answer
    x = 14,279.38

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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.