Home / 18,320.06-25,281.50-10,362.21

Finding the Fourth Proportional to 18,320.06, 25,281.50 and 10,362.21

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Solution

The fourth proportional to 18,320.06, 25,281.50 and 10,362.21 is: 14,299.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,320.06 : 25,281.50 = 10,362.21 : x
  2. Step 2: Convert to fraction form
    18,320.06/25,281.50 = 10,362.21/x
  3. Step 3: Cross multiply
    18,320.06x = 25,281.50 × 10,362.21
  4. Step 4: Simplify right side
    18,320.06x = 261,972,160.30
  5. Step 5: Solve for x
    x = 261,972,160.30/18,320.06
  6. Step 6: Final answer
    x = 14,299.75

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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.