Home / 20,811.13-31,161.32-16,262.84

Finding the Fourth Proportional to 20,811.13, 31,161.32 and 16,262.84

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Solution

The fourth proportional to 20,811.13, 31,161.32 and 16,262.84 is: 24,351.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,811.13 : 31,161.32 = 16,262.84 : x
  2. Step 2: Convert to fraction form
    20,811.13/31,161.32 = 16,262.84/x
  3. Step 3: Cross multiply
    20,811.13x = 31,161.32 × 16,262.84
  4. Step 4: Simplify right side
    20,811.13x = 506,771,710.40
  5. Step 5: Solve for x
    x = 506,771,710.40/20,811.13
  6. Step 6: Final answer
    x = 24,351.00

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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.