Home / 31,193.42-46,707.90-18,683.78

Finding the Fourth Proportional to 31,193.42, 46,707.90 and 18,683.78

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Solution

The fourth proportional to 31,193.42, 46,707.90 and 18,683.78 is: 27,976.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,193.42 : 46,707.90 = 18,683.78 : x
  2. Step 2: Convert to fraction form
    31,193.42/46,707.90 = 18,683.78/x
  3. Step 3: Cross multiply
    31,193.42x = 46,707.90 × 18,683.78
  4. Step 4: Simplify right side
    31,193.42x = 872,680,127.86
  5. Step 5: Solve for x
    x = 872,680,127.86/31,193.42
  6. Step 6: Final answer
    x = 27,976.42

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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.