Home / 47,689.17-71,533.71-12,628.86

Finding the Fourth Proportional to 47,689.17, 71,533.71 and 12,628.86

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Solution

The fourth proportional to 47,689.17, 71,533.71 and 12,628.86 is: 18,943.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,689.17 : 71,533.71 = 12,628.86 : x
  2. Step 2: Convert to fraction form
    47,689.17/71,533.71 = 12,628.86/x
  3. Step 3: Cross multiply
    47,689.17x = 71,533.71 × 12,628.86
  4. Step 4: Simplify right side
    47,689.17x = 903,389,208.87
  5. Step 5: Solve for x
    x = 903,389,208.87/47,689.17
  6. Step 6: Final answer
    x = 18,943.28

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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.