Home / 47,112.28-70,668.81-13,832.88

Finding the Fourth Proportional to 47,112.28, 70,668.81 and 13,832.88

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Solution

The fourth proportional to 47,112.28, 70,668.81 and 13,832.88 is: 20,749.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,112.28 : 70,668.81 = 13,832.88 : x
  2. Step 2: Convert to fraction form
    47,112.28/70,668.81 = 13,832.88/x
  3. Step 3: Cross multiply
    47,112.28x = 70,668.81 × 13,832.88
  4. Step 4: Simplify right side
    47,112.28x = 977,553,168.47
  5. Step 5: Solve for x
    x = 977,553,168.47/47,112.28
  6. Step 6: Final answer
    x = 20,749.43

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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.