Home / 31,783.68-47,682.72-16,984.80

Finding the Fourth Proportional to 31,783.68, 47,682.72 and 16,984.80

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Solution

The fourth proportional to 31,783.68, 47,682.72 and 16,984.80 is: 25,481.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,783.68 : 47,682.72 = 16,984.80 : x
  2. Step 2: Convert to fraction form
    31,783.68/47,682.72 = 16,984.80/x
  3. Step 3: Cross multiply
    31,783.68x = 47,682.72 × 16,984.80
  4. Step 4: Simplify right side
    31,783.68x = 809,881,462.66
  5. Step 5: Solve for x
    x = 809,881,462.66/31,783.68
  6. Step 6: Final answer
    x = 25,481.05

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1.5x scale

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.