Home / 30,072.70-45,079.28-14,249.75

Finding the Fourth Proportional to 30,072.70, 45,079.28 and 14,249.75

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Solution

The fourth proportional to 30,072.70, 45,079.28 and 14,249.75 is: 21,360.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,072.70 : 45,079.28 = 14,249.75 : x
  2. Step 2: Convert to fraction form
    30,072.70/45,079.28 = 14,249.75/x
  3. Step 3: Cross multiply
    30,072.70x = 45,079.28 × 14,249.75
  4. Step 4: Simplify right side
    30,072.70x = 642,368,398.93
  5. Step 5: Solve for x
    x = 642,368,398.93/30,072.70
  6. Step 6: Final answer
    x = 21,360.52

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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.