Home / 30,419.10-41,954.24-18,482.20

Finding the Fourth Proportional to 30,419.10, 41,954.24 and 18,482.20

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Solution

The fourth proportional to 30,419.10, 41,954.24 and 18,482.20 is: 25,490.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,419.10 : 41,954.24 = 18,482.20 : x
  2. Step 2: Convert to fraction form
    30,419.10/41,954.24 = 18,482.20/x
  3. Step 3: Cross multiply
    30,419.10x = 41,954.24 × 18,482.20
  4. Step 4: Simplify right side
    30,419.10x = 775,406,654.53
  5. Step 5: Solve for x
    x = 775,406,654.53/30,419.10
  6. Step 6: Final answer
    x = 25,490.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.