Home / 28,248.55-42,386.64-11,380.85

Finding the Fourth Proportional to 28,248.55, 42,386.64 and 11,380.85

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Solution

The fourth proportional to 28,248.55, 42,386.64 and 11,380.85 is: 17,076.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,248.55 : 42,386.64 = 11,380.85 : x
  2. Step 2: Convert to fraction form
    28,248.55/42,386.64 = 11,380.85/x
  3. Step 3: Cross multiply
    28,248.55x = 42,386.64 × 11,380.85
  4. Step 4: Simplify right side
    28,248.55x = 482,395,991.84
  5. Step 5: Solve for x
    x = 482,395,991.84/28,248.55
  6. Step 6: Final answer
    x = 17,076.84

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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.