Home / 20,291.72-30,444.06-8,614.76

Finding the Fourth Proportional to 20,291.72, 30,444.06 and 8,614.76

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Solution

The fourth proportional to 20,291.72, 30,444.06 and 8,614.76 is: 12,924.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,291.72 : 30,444.06 = 8,614.76 : x
  2. Step 2: Convert to fraction form
    20,291.72/30,444.06 = 8,614.76/x
  3. Step 3: Cross multiply
    20,291.72x = 30,444.06 × 8,614.76
  4. Step 4: Simplify right side
    20,291.72x = 262,268,270.33
  5. Step 5: Solve for x
    x = 262,268,270.33/20,291.72
  6. Step 6: Final answer
    x = 12,924.89

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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.