Home / 28,278.67-42,410.99-9,558.29

Finding the Fourth Proportional to 28,278.67, 42,410.99 and 9,558.29

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Solution

The fourth proportional to 28,278.67, 42,410.99 and 9,558.29 is: 14,335.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,278.67 : 42,410.99 = 9,558.29 : x
  2. Step 2: Convert to fraction form
    28,278.67/42,410.99 = 9,558.29/x
  3. Step 3: Cross multiply
    28,278.67x = 42,410.99 × 9,558.29
  4. Step 4: Simplify right side
    28,278.67x = 405,376,329.55
  5. Step 5: Solve for x
    x = 405,376,329.55/28,278.67
  6. Step 6: Final answer
    x = 14,335.06

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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.