Home / 47,108.27-70,662.81-13,828.88

Finding the Fourth Proportional to 47,108.27, 70,662.81 and 13,828.88

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Solution

The fourth proportional to 47,108.27, 70,662.81 and 13,828.88 is: 20,743.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,108.27 : 70,662.81 = 13,828.88 : x
  2. Step 2: Convert to fraction form
    47,108.27/70,662.81 = 13,828.88/x
  3. Step 3: Cross multiply
    47,108.27x = 70,662.81 × 13,828.88
  4. Step 4: Simplify right side
    47,108.27x = 977,187,519.95
  5. Step 5: Solve for x
    x = 977,187,519.95/47,108.27
  6. Step 6: Final answer
    x = 20,743.44

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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.