Home / 47,289.20-70,935.04-12,228.76

Finding the Fourth Proportional to 47,289.20, 70,935.04 and 12,228.76

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Solution

The fourth proportional to 47,289.20, 70,935.04 and 12,228.76 is: 18,343.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,289.20 : 70,935.04 = 12,228.76 : x
  2. Step 2: Convert to fraction form
    47,289.20/70,935.04 = 12,228.76/x
  3. Step 3: Cross multiply
    47,289.20x = 70,935.04 × 12,228.76
  4. Step 4: Simplify right side
    47,289.20x = 867,447,579.75
  5. Step 5: Solve for x
    x = 867,447,579.75/47,289.20
  6. Step 6: Final answer
    x = 18,343.46

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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.