Home / 31,233.86-46,818.15-13,688.90

Finding the Fourth Proportional to 31,233.86, 46,818.15 and 13,688.90

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Solution

The fourth proportional to 31,233.86, 46,818.15 and 13,688.90 is: 20,519.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,233.86 : 46,818.15 = 13,688.90 : x
  2. Step 2: Convert to fraction form
    31,233.86/46,818.15 = 13,688.90/x
  3. Step 3: Cross multiply
    31,233.86x = 46,818.15 × 13,688.90
  4. Step 4: Simplify right side
    31,233.86x = 640,888,973.54
  5. Step 5: Solve for x
    x = 640,888,973.54/31,233.86
  6. Step 6: Final answer
    x = 20,519.04

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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.