Home / 20,632.58-30,939.42-11,275.74

Finding the Fourth Proportional to 20,632.58, 30,939.42 and 11,275.74

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Solution

The fourth proportional to 20,632.58, 30,939.42 and 11,275.74 is: 16,908.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,632.58 : 30,939.42 = 11,275.74 : x
  2. Step 2: Convert to fraction form
    20,632.58/30,939.42 = 11,275.74/x
  3. Step 3: Cross multiply
    20,632.58x = 30,939.42 × 11,275.74
  4. Step 4: Simplify right side
    20,632.58x = 348,864,855.67
  5. Step 5: Solve for x
    x = 348,864,855.67/20,632.58
  6. Step 6: Final answer
    x = 16,908.45

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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.