Home / 47,983.86-72,008.64-16,819.20

Finding the Fourth Proportional to 47,983.86, 72,008.64 and 16,819.20

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Solution

The fourth proportional to 47,983.86, 72,008.64 and 16,819.20 is: 25,240.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,983.86 : 72,008.64 = 16,819.20 : x
  2. Step 2: Convert to fraction form
    47,983.86/72,008.64 = 16,819.20/x
  3. Step 3: Cross multiply
    47,983.86x = 72,008.64 × 16,819.20
  4. Step 4: Simplify right side
    47,983.86x = 1,211,127,717.89
  5. Step 5: Solve for x
    x = 1,211,127,717.89/47,983.86
  6. Step 6: Final answer
    x = 25,240.31

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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.