Home / 20,620.04-30,945.60-15,087.65

Finding the Fourth Proportional to 20,620.04, 30,945.60 and 15,087.65

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Solution

The fourth proportional to 20,620.04, 30,945.60 and 15,087.65 is: 22,642.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,620.04 : 30,945.60 = 15,087.65 : x
  2. Step 2: Convert to fraction form
    20,620.04/30,945.60 = 15,087.65/x
  3. Step 3: Cross multiply
    20,620.04x = 30,945.60 × 15,087.65
  4. Step 4: Simplify right side
    20,620.04x = 466,896,381.84
  5. Step 5: Solve for x
    x = 466,896,381.84/20,620.04
  6. Step 6: Final answer
    x = 22,642.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.