Home / 15,418.82-23,128.21-5,030.57

Finding the Fourth Proportional to 15,418.82, 23,128.21 and 5,030.57

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Solution

The fourth proportional to 15,418.82, 23,128.21 and 5,030.57 is: 7,545.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,418.82 : 23,128.21 = 5,030.57 : x
  2. Step 2: Convert to fraction form
    15,418.82/23,128.21 = 5,030.57/x
  3. Step 3: Cross multiply
    15,418.82x = 23,128.21 × 5,030.57
  4. Step 4: Simplify right side
    15,418.82x = 116,348,079.38
  5. Step 5: Solve for x
    x = 116,348,079.38/15,418.82
  6. Step 6: Final answer
    x = 7,545.85

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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.