Home / 31,677.86-43,720.08-18,246.50

Finding the Fourth Proportional to 31,677.86, 43,720.08 and 18,246.50

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Solution

The fourth proportional to 31,677.86, 43,720.08 and 18,246.50 is: 25,182.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,677.86 : 43,720.08 = 18,246.50 : x
  2. Step 2: Convert to fraction form
    31,677.86/43,720.08 = 18,246.50/x
  3. Step 3: Cross multiply
    31,677.86x = 43,720.08 × 18,246.50
  4. Step 4: Simplify right side
    31,677.86x = 797,738,439.72
  5. Step 5: Solve for x
    x = 797,738,439.72/31,677.86
  6. Step 6: Final answer
    x = 25,182.84

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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.