Home / 47,973.62-71,965.55-12,913.78

Finding the Fourth Proportional to 47,973.62, 71,965.55 and 12,913.78

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Solution

The fourth proportional to 47,973.62, 71,965.55 and 12,913.78 is: 19,372.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,973.62 : 71,965.55 = 12,913.78 : x
  2. Step 2: Convert to fraction form
    47,973.62/71,965.55 = 12,913.78/x
  3. Step 3: Cross multiply
    47,973.62x = 71,965.55 × 12,913.78
  4. Step 4: Simplify right side
    47,973.62x = 929,347,280.28
  5. Step 5: Solve for x
    x = 929,347,280.28/47,973.62
  6. Step 6: Final answer
    x = 19,372.05

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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.