Home / 31,783.22-47,674.86-16,211.78

Finding the Fourth Proportional to 31,783.22, 47,674.86 and 16,211.78

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Solution

The fourth proportional to 31,783.22, 47,674.86 and 16,211.78 is: 24,317.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,783.22 : 47,674.86 = 16,211.78 : x
  2. Step 2: Convert to fraction form
    31,783.22/47,674.86 = 16,211.78/x
  3. Step 3: Cross multiply
    31,783.22x = 47,674.86 × 16,211.78
  4. Step 4: Simplify right side
    31,783.22x = 772,894,341.85
  5. Step 5: Solve for x
    x = 772,894,341.85/31,783.22
  6. Step 6: Final answer
    x = 24,317.69

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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.