Home / 30,395.40-45,592.12-13,755.43

Finding the Fourth Proportional to 30,395.40, 45,592.12 and 13,755.43

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Solution

The fourth proportional to 30,395.40, 45,592.12 and 13,755.43 is: 20,632.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,395.40 : 45,592.12 = 13,755.43 : x
  2. Step 2: Convert to fraction form
    30,395.40/45,592.12 = 13,755.43/x
  3. Step 3: Cross multiply
    30,395.40x = 45,592.12 × 13,755.43
  4. Step 4: Simplify right side
    30,395.40x = 627,139,363.18
  5. Step 5: Solve for x
    x = 627,139,363.18/30,395.40
  6. Step 6: Final answer
    x = 20,632.71

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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.