Home / 47,100.28-70,650.80-13,820.88

Finding the Fourth Proportional to 47,100.28, 70,650.80 and 13,820.88

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Solution

The fourth proportional to 47,100.28, 70,650.80 and 13,820.88 is: 20,731.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,100.28 : 70,650.80 = 13,820.88 : x
  2. Step 2: Convert to fraction form
    47,100.28/70,650.80 = 13,820.88/x
  3. Step 3: Cross multiply
    47,100.28x = 70,650.80 × 13,820.88
  4. Step 4: Simplify right side
    47,100.28x = 976,456,228.70
  5. Step 5: Solve for x
    x = 976,456,228.70/47,100.28
  6. Step 6: Final answer
    x = 20,731.43

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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.