Home / 31,477.96-43,438.30-18,039.86

Finding the Fourth Proportional to 31,477.96, 43,438.30 and 18,039.86

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Solution

The fourth proportional to 31,477.96, 43,438.30 and 18,039.86 is: 24,894.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,477.96 : 43,438.30 = 18,039.86 : x
  2. Step 2: Convert to fraction form
    31,477.96/43,438.30 = 18,039.86/x
  3. Step 3: Cross multiply
    31,477.96x = 43,438.30 × 18,039.86
  4. Step 4: Simplify right side
    31,477.96x = 783,620,588.35
  5. Step 5: Solve for x
    x = 783,620,588.35/31,477.96
  6. Step 6: Final answer
    x = 24,894.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.