Home / 28,247.14-42,370.96-7,187.21

Finding the Fourth Proportional to 28,247.14, 42,370.96 and 7,187.21

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Solution

The fourth proportional to 28,247.14, 42,370.96 and 7,187.21 is: 10,780.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247.14 : 42,370.96 = 7,187.21 : x
  2. Step 2: Convert to fraction form
    28,247.14/42,370.96 = 7,187.21/x
  3. Step 3: Cross multiply
    28,247.14x = 42,370.96 × 7,187.21
  4. Step 4: Simplify right side
    28,247.14x = 304,528,987.42
  5. Step 5: Solve for x
    x = 304,528,987.42/28,247.14
  6. Step 6: Final answer
    x = 10,780.88

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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.