Home / 20,423.01-30,579.44-14,169.81

Finding the Fourth Proportional to 20,423.01, 30,579.44 and 14,169.81

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Solution

The fourth proportional to 20,423.01, 30,579.44 and 14,169.81 is: 21,216.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,423.01 : 30,579.44 = 14,169.81 : x
  2. Step 2: Convert to fraction form
    20,423.01/30,579.44 = 14,169.81/x
  3. Step 3: Cross multiply
    20,423.01x = 30,579.44 × 14,169.81
  4. Step 4: Simplify right side
    20,423.01x = 433,304,783.86
  5. Step 5: Solve for x
    x = 433,304,783.86/20,423.01
  6. Step 6: Final answer
    x = 21,216.50

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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.