Home / 47,115.28-70,686.96-19,020.88

Finding the Fourth Proportional to 47,115.28, 70,686.96 and 19,020.88

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Solution

The fourth proportional to 47,115.28, 70,686.96 and 19,020.88 is: 28,536.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,115.28 : 70,686.96 = 19,020.88 : x
  2. Step 2: Convert to fraction form
    47,115.28/70,686.96 = 19,020.88/x
  3. Step 3: Cross multiply
    47,115.28x = 70,686.96 × 19,020.88
  4. Step 4: Simplify right side
    47,115.28x = 1,344,528,183.72
  5. Step 5: Solve for x
    x = 1,344,528,183.72/47,115.28
  6. Step 6: Final answer
    x = 28,536.99

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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.