Home / 28,247.33-42,371.24-7,187.40

Finding the Fourth Proportional to 28,247.33, 42,371.24 and 7,187.40

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Solution

The fourth proportional to 28,247.33, 42,371.24 and 7,187.40 is: 10,781.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247.33 : 42,371.24 = 7,187.40 : x
  2. Step 2: Convert to fraction form
    28,247.33/42,371.24 = 7,187.40/x
  3. Step 3: Cross multiply
    28,247.33x = 42,371.24 × 7,187.40
  4. Step 4: Simplify right side
    28,247.33x = 304,539,050.38
  5. Step 5: Solve for x
    x = 304,539,050.38/28,247.33
  6. Step 6: Final answer
    x = 10,781.16

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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.