Home / 20,615.65-30,923.39-7,464.95

Finding the Fourth Proportional to 20,615.65, 30,923.39 and 7,464.95

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Solution

The fourth proportional to 20,615.65, 30,923.39 and 7,464.95 is: 11,197.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,615.65 : 30,923.39 = 7,464.95 : x
  2. Step 2: Convert to fraction form
    20,615.65/30,923.39 = 7,464.95/x
  3. Step 3: Cross multiply
    20,615.65x = 30,923.39 × 7,464.95
  4. Step 4: Simplify right side
    20,615.65x = 230,841,424.23
  5. Step 5: Solve for x
    x = 230,841,424.23/20,615.65
  6. Step 6: Final answer
    x = 11,197.39

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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.