Home / 18,420.35-25,419.83-10,462.50

Finding the Fourth Proportional to 18,420.35, 25,419.83 and 10,462.50

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Solution

The fourth proportional to 18,420.35, 25,419.83 and 10,462.50 is: 14,438.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,420.35 : 25,419.83 = 10,462.50 : x
  2. Step 2: Convert to fraction form
    18,420.35/25,419.83 = 10,462.50/x
  3. Step 3: Cross multiply
    18,420.35x = 25,419.83 × 10,462.50
  4. Step 4: Simplify right side
    18,420.35x = 265,954,919.06
  5. Step 5: Solve for x
    x = 265,954,919.06/18,420.35
  6. Step 6: Final answer
    x = 14,438.11

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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.