Home / 28,248.14-42,372.46-7,188.21

Finding the Fourth Proportional to 28,248.14, 42,372.46 and 7,188.21

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Solution

The fourth proportional to 28,248.14, 42,372.46 and 7,188.21 is: 10,782.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,248.14 : 42,372.46 = 7,188.21 : x
  2. Step 2: Convert to fraction form
    28,248.14/42,372.46 = 7,188.21/x
  3. Step 3: Cross multiply
    28,248.14x = 42,372.46 × 7,188.21
  4. Step 4: Simplify right side
    28,248.14x = 304,582,140.70
  5. Step 5: Solve for x
    x = 304,582,140.70/28,248.14
  6. Step 6: Final answer
    x = 10,782.38

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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.