Home / 31,866.08-47,659.26-28,380.56

Finding the Fourth Proportional to 31,866.08, 47,659.26 and 28,380.56

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Solution

The fourth proportional to 31,866.08, 47,659.26 and 28,380.56 is: 42,446.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,866.08 : 47,659.26 = 28,380.56 : x
  2. Step 2: Convert to fraction form
    31,866.08/47,659.26 = 28,380.56/x
  3. Step 3: Cross multiply
    31,866.08x = 47,659.26 × 28,380.56
  4. Step 4: Simplify right side
    31,866.08x = 1,352,596,487.99
  5. Step 5: Solve for x
    x = 1,352,596,487.99/31,866.08
  6. Step 6: Final answer
    x = 42,446.28

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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.