Home / 30,112.14-45,109.89-14,540.70

Finding the Fourth Proportional to 30,112.14, 45,109.89 and 14,540.70

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Solution

The fourth proportional to 30,112.14, 45,109.89 and 14,540.70 is: 21,782.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,112.14 : 45,109.89 = 14,540.70 : x
  2. Step 2: Convert to fraction form
    30,112.14/45,109.89 = 14,540.70/x
  3. Step 3: Cross multiply
    30,112.14x = 45,109.89 × 14,540.70
  4. Step 4: Simplify right side
    30,112.14x = 655,929,377.52
  5. Step 5: Solve for x
    x = 655,929,377.52/30,112.14
  6. Step 6: Final answer
    x = 21,782.89

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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.