Home / 28,251.09-42,372.14-7,476.21

Finding the Fourth Proportional to 28,251.09, 42,372.14 and 7,476.21

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Solution

The fourth proportional to 28,251.09, 42,372.14 and 7,476.21 is: 11,213.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,251.09 : 42,372.14 = 7,476.21 : x
  2. Step 2: Convert to fraction form
    28,251.09/42,372.14 = 7,476.21/x
  3. Step 3: Cross multiply
    28,251.09x = 42,372.14 × 7,476.21
  4. Step 4: Simplify right side
    28,251.09x = 316,782,979.41
  5. Step 5: Solve for x
    x = 316,782,979.41/28,251.09
  6. Step 6: Final answer
    x = 11,213.12

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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.