Home / 31,189.41-46,701.90-18,679.77

Finding the Fourth Proportional to 31,189.41, 46,701.90 and 18,679.77

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Solution

The fourth proportional to 31,189.41, 46,701.90 and 18,679.77 is: 27,970.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,189.41 : 46,701.90 = 18,679.77 : x
  2. Step 2: Convert to fraction form
    31,189.41/46,701.90 = 18,679.77/x
  3. Step 3: Cross multiply
    31,189.41x = 46,701.90 × 18,679.77
  4. Step 4: Simplify right side
    31,189.41x = 872,380,750.56
  5. Step 5: Solve for x
    x = 872,380,750.56/31,189.41
  6. Step 6: Final answer
    x = 27,970.42

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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.