Home / 47,643.68-71,471.16-12,583.64

Finding the Fourth Proportional to 47,643.68, 71,471.16 and 12,583.64

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Solution

The fourth proportional to 47,643.68, 71,471.16 and 12,583.64 is: 18,876.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,643.68 : 71,471.16 = 12,583.64 : x
  2. Step 2: Convert to fraction form
    47,643.68/71,471.16 = 12,583.64/x
  3. Step 3: Cross multiply
    47,643.68x = 71,471.16 × 12,583.64
  4. Step 4: Simplify right side
    47,643.68x = 899,367,347.82
  5. Step 5: Solve for x
    x = 899,367,347.82/47,643.68
  6. Step 6: Final answer
    x = 18,876.95

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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.