Home / 18,428.20-25,429.65-10,362.04

Finding the Fourth Proportional to 18,428.20, 25,429.65 and 10,362.04

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Solution

The fourth proportional to 18,428.20, 25,429.65 and 10,362.04 is: 14,298.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,428.20 : 25,429.65 = 10,362.04 : x
  2. Step 2: Convert to fraction form
    18,428.20/25,429.65 = 10,362.04/x
  3. Step 3: Cross multiply
    18,428.20x = 25,429.65 × 10,362.04
  4. Step 4: Simplify right side
    18,428.20x = 263,503,050.49
  5. Step 5: Solve for x
    x = 263,503,050.49/18,428.20
  6. Step 6: Final answer
    x = 14,298.90

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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.