Home / 30,419.55-41,971.41-18,482.13

Finding the Fourth Proportional to 30,419.55, 41,971.41 and 18,482.13

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Solution

The fourth proportional to 30,419.55, 41,971.41 and 18,482.13 is: 25,500.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,419.55 : 41,971.41 = 18,482.13 : x
  2. Step 2: Convert to fraction form
    30,419.55/41,971.41 = 18,482.13/x
  3. Step 3: Cross multiply
    30,419.55x = 41,971.41 × 18,482.13
  4. Step 4: Simplify right side
    30,419.55x = 775,721,055.90
  5. Step 5: Solve for x
    x = 775,721,055.90/30,419.55
  6. Step 6: Final answer
    x = 25,500.74

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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.