Home / 34,247.13-47,262.83-20,816.20

Finding the Fourth Proportional to 34,247.13, 47,262.83 and 20,816.20

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Solution

The fourth proportional to 34,247.13, 47,262.83 and 20,816.20 is: 28,727.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,247.13 : 47,262.83 = 20,816.20 : x
  2. Step 2: Convert to fraction form
    34,247.13/47,262.83 = 20,816.20/x
  3. Step 3: Cross multiply
    34,247.13x = 47,262.83 × 20,816.20
  4. Step 4: Simplify right side
    34,247.13x = 983,832,521.85
  5. Step 5: Solve for x
    x = 983,832,521.85/34,247.13
  6. Step 6: Final answer
    x = 28,727.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.